Answer
Aquí están las soluciones para las ecuaciones:
1. \( x = 2 \)
2. \( x = 0 \)
3. \( x = 8 \)
4. \( x = 10 \)
5. \( x = 0.5 \)
6. \( x = 3.25 \)
7. \( x \approx 1.714 \)
8. \( x = 0.8 \)
9. \( x = 0.9 \)
10. \( x = -1.6 \)
Solution
Solve the equation by following steps:
- step0: Solve for \(x\):
\(3\left(4-x\right)=12\)
- step1: Divide both sides:
\(\frac{3\left(4-x\right)}{3}=\frac{12}{3}\)
- step2: Divide the numbers:
\(4-x=4\)
- step3: Move the constant to the right side:
\(-x=4-4\)
- step4: Subtract the numbers:
\(-x=0\)
- step5: Change the signs:
\(x=0\)
Solve the equation \( 3(2-x)=4+x \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(3\left(2-x\right)=4+x\)
- step1: Expand the expression:
\(6-3x=4+x\)
- step2: Move the expression to the left side:
\(-3x-x=4-6\)
- step3: Add and subtract:
\(-4x=4-6\)
- step4: Add and subtract:
\(-4x=-2\)
- step5: Change the signs:
\(4x=2\)
- step6: Divide both sides:
\(\frac{4x}{4}=\frac{2}{4}\)
- step7: Divide the numbers:
\(x=\frac{1}{2}\)
Solve the equation \( 2(3-x)=5 x-6 \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(2\left(3-x\right)=5x-6\)
- step1: Expand the expression:
\(6-2x=5x-6\)
- step2: Move the expression to the left side:
\(-2x-5x=-6-6\)
- step3: Add and subtract:
\(-7x=-6-6\)
- step4: Add and subtract:
\(-7x=-12\)
- step5: Change the signs:
\(7x=12\)
- step6: Divide both sides:
\(\frac{7x}{7}=\frac{12}{7}\)
- step7: Divide the numbers:
\(x=\frac{12}{7}\)
Solve the equation \( 1+2(x+2)=-3(1+x) \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(1+2\left(x+2\right)=-3\left(1+x\right)\)
- step1: Calculate:
\(5+2x=-3\left(1+x\right)\)
- step2: Calculate:
\(5+2x=-3-3x\)
- step3: Move the expression to the left side:
\(5+2x-\left(-3-3x\right)=0\)
- step4: Calculate:
\(8+5x=0\)
- step5: Move the constant to the right side:
\(5x=0-8\)
- step6: Remove 0:
\(5x=-8\)
- step7: Divide both sides:
\(\frac{5x}{5}=\frac{-8}{5}\)
- step8: Divide the numbers:
\(x=-\frac{8}{5}\)
Solve the equation \( 3(3-2 x)=-4-2 x \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(3\left(3-2x\right)=-4-2x\)
- step1: Expand the expression:
\(9-6x=-4-2x\)
- step2: Move the expression to the left side:
\(-6x+2x=-4-9\)
- step3: Add and subtract:
\(-4x=-4-9\)
- step4: Add and subtract:
\(-4x=-13\)
- step5: Change the signs:
\(4x=13\)
- step6: Divide both sides:
\(\frac{4x}{4}=\frac{13}{4}\)
- step7: Divide the numbers:
\(x=\frac{13}{4}\)
Solve the equation \( 2(x+2)=8 \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(2\left(x+2\right)=8\)
- step1: Divide both sides:
\(\frac{2\left(x+2\right)}{2}=\frac{8}{2}\)
- step2: Divide the numbers:
\(x+2=4\)
- step3: Move the constant to the right side:
\(x=4-2\)
- step4: Subtract the numbers:
\(x=2\)
Solve the equation \( 3.2(x+2)=4 x \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(3.2\left(x+2\right)=4x\)
- step1: Expand the expression:
\(3.2x+6.4=4x\)
- step2: Move the variable to the left side:
\(3.2x+6.4-4x=0\)
- step3: Subtract the terms:
\(-0.8x+6.4=0\)
- step4: Move the constant to the right side:
\(-0.8x=0-6.4\)
- step5: Remove 0:
\(-0.8x=-6.4\)
- step6: Change the signs:
\(0.8x=6.4\)
- step7: Divide both sides:
\(\frac{0.8x}{0.8}=\frac{6.4}{0.8}\)
- step8: Divide the numbers:
\(x=8\)
Solve the equation \( 2(x+5)=3 x \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(2\left(x+5\right)=3x\)
- step1: Expand the expression:
\(2x+10=3x\)
- step2: Move the variable to the left side:
\(2x+10-3x=0\)
- step3: Subtract the terms:
\(-x+10=0\)
- step4: Move the constant to the right side:
\(-x=0-10\)
- step5: Remove 0:
\(-x=-10\)
- step6: Change the signs:
\(x=10\)
Solve the equation \( 5(2-2 x)=6-5 x \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(5\left(2-2x\right)=6-5x\)
- step1: Expand the expression:
\(10-10x=6-5x\)
- step2: Move the expression to the left side:
\(-10x+5x=6-10\)
- step3: Add and subtract:
\(-5x=6-10\)
- step4: Add and subtract:
\(-5x=-4\)
- step5: Change the signs:
\(5x=4\)
- step6: Divide both sides:
\(\frac{5x}{5}=\frac{4}{5}\)
- step7: Divide the numbers:
\(x=\frac{4}{5}\)
Solve the equation \( -3(x-2)=6 x-3+x \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(-3\left(x-2\right)=6x-3+x\)
- step1: Add the terms:
\(-3\left(x-2\right)=7x-3\)
- step2: Expand the expression:
\(-3x+6=7x-3\)
- step3: Move the expression to the left side:
\(-3x-7x=-3-6\)
- step4: Add and subtract:
\(-10x=-3-6\)
- step5: Add and subtract:
\(-10x=-9\)
- step6: Change the signs:
\(10x=9\)
- step7: Divide both sides:
\(\frac{10x}{10}=\frac{9}{10}\)
- step8: Divide the numbers:
\(x=\frac{9}{10}\)
Aquí están las soluciones para las ecuaciones dadas:
1. **Ecuación:** \( 2(x+2)=8 \)
**Solución:** \( x=2 \)
2. **Ecuación:** \( 3(4-x)=12 \)
**Solución:** \( x=0 \)
3. **Ecuación:** \( 3.2(x+2)=4 x \)
**Solución:** \( x=8 \)
4. **Ecuación:** \( 2(x+5)=3 x \)
**Solución:** \( x=10 \)
5. **Ecuación:** \( 3(2-x)=4+x \)
**Solución:** \( x=\frac{1}{2} \) o \( x=0.5 \)
6. **Ecuación:** \( 3(3-2 x)=-4-2 x \)
**Solución:** \( x=\frac{13}{4} \) o \( x=3.25 \)
7. **Ecuación:** \( 2(3-x)=5 x-6 \)
**Solución:** \( x=\frac{12}{7} \) o \( x=1.\dot{7}1428\dot{5} \)
8. **Ecuación:** \( 5(2-2 x)=6-5 x \)
**Solución:** \( x=\frac{4}{5} \) o \( x=0.8 \)
9. **Ecuación:** \( -3(x-2)=6 x-3+x \)
**Solución:** \( x=\frac{9}{10} \) o \( x=0.9 \)
10. **Ecuación:** \( 1+2(x+2)=-3(1+x) \)
**Solución:** \( x=-\frac{8}{5} \) o \( x=-1.6 \)
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