Answer
Here are the solutions for each equation:
1. **Equation (6)**: \( x = -5 \)
2. **Equation (7)**: \( x = 3.75 \) or \( x = 54 \)
3. **Equation (8)**: \( x = 54 \)
4. **Equation (9)**: \( x = -1 \)
Solution
Solve the equation by following steps:
- step0: Solve for \(x\):
\(\frac{7x}{x^{2}+x}-\frac{5}{x}=\frac{3}{x+1}\)
- step1: Find the domain:
\(\frac{7x}{x^{2}+x}-\frac{5}{x}=\frac{3}{x+1},x \in \left(-\infty,-1\right)\cup \left(-1,0\right)\cup \left(0,+\infty\right)\)
- step2: Divide the terms:
\(\frac{7}{x+1}-\frac{5}{x}=\frac{3}{x+1}\)
- step3: Multiply both sides of the equation by LCD:
\(\left(\frac{7}{x+1}-\frac{5}{x}\right)x\left(x+1\right)=\frac{3}{x+1}\times x\left(x+1\right)\)
- step4: Simplify the equation:
\(2x-5=3x\)
- step5: Move the variable to the left side:
\(2x-5-3x=0\)
- step6: Subtract the terms:
\(-x-5=0\)
- step7: Move the constant to the right side:
\(-x=0+5\)
- step8: Remove 0:
\(-x=5\)
- step9: Change the signs:
\(x=-5\)
- step10: Check if the solution is in the defined range:
\(x=-5,x \in \left(-\infty,-1\right)\cup \left(-1,0\right)\cup \left(0,+\infty\right)\)
- step11: Find the intersection:
\(x=-5\)
Solve the equation \( \frac{3}{x-2}+\frac{x+3}{4-x^{2}}=\frac{6}{x+2} \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(\frac{3}{x-2}+\frac{x+3}{4-x^{2}}=\frac{6}{x+2}\)
- step1: Find the domain:
\(\frac{3}{x-2}+\frac{x+3}{4-x^{2}}=\frac{6}{x+2},x \in \left(-\infty,-2\right)\cup \left(-2,2\right)\cup \left(2,+\infty\right)\)
- step2: Multiply both sides of the equation by LCD:
\(\left(\frac{3}{x-2}+\frac{x+3}{4-x^{2}}\right)\left(x+2\right)\left(-x+2\right)=\frac{6}{x+2}\times \left(x+2\right)\left(-x+2\right)\)
- step3: Simplify the equation:
\(-3-2x=-6x+12\)
- step4: Move the expression to the left side:
\(-2x+6x=12+3\)
- step5: Add and subtract:
\(4x=12+3\)
- step6: Add and subtract:
\(4x=15\)
- step7: Divide both sides:
\(\frac{4x}{4}=\frac{15}{4}\)
- step8: Divide the numbers:
\(x=\frac{15}{4}\)
- step9: Check if the solution is in the defined range:
\(x=\frac{15}{4},x \in \left(-\infty,-2\right)\cup \left(-2,2\right)\cup \left(2,+\infty\right)\)
- step10: Find the intersection:
\(x=\frac{15}{4}\)
Solve the equation \( \frac{2 x+1}{x}-\frac{5 x}{x^{2}-4 x}=2 \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(\frac{2x+1}{x}-\frac{5x}{x^{2}-4x}=2\)
- step1: Find the domain:
\(\frac{2x+1}{x}-\frac{5x}{x^{2}-4x}=2,x \in \left(-\infty,0\right)\cup \left(0,4\right)\cup \left(4,+\infty\right)\)
- step2: Divide the terms:
\(\frac{2x+1}{x}-\frac{5}{x-4}=2\)
- step3: Multiply both sides of the equation by LCD:
\(\left(\frac{2x+1}{x}-\frac{5}{x-4}\right)x\left(x-4\right)=2x\left(x-4\right)\)
- step4: Simplify the equation:
\(2x^{2}-12x-4=2x^{2}-8x\)
- step5: Cancel equal terms:
\(-12x-4=-8x\)
- step6: Move the variable to the left side:
\(-12x-4+8x=0\)
- step7: Add the terms:
\(-4x-4=0\)
- step8: Move the constant to the right side:
\(-4x=0+4\)
- step9: Remove 0:
\(-4x=4\)
- step10: Change the signs:
\(4x=-4\)
- step11: Divide both sides:
\(\frac{4x}{4}=\frac{-4}{4}\)
- step12: Divide the numbers:
\(x=-1\)
- step13: Check if the solution is in the defined range:
\(x=-1,x \in \left(-\infty,0\right)\cup \left(0,4\right)\cup \left(4,+\infty\right)\)
- step14: Find the intersection:
\(x=-1\)
Solve the equation \( \frac{3}{x-6}-\frac{5}{2 x-8}=\frac{x-24}{x^{2}-10 x+24} \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(\frac{3}{x-6}-\frac{5}{2x-8}=\frac{x-24}{x^{2}-10x+24}\)
- step1: Find the domain:
\(\frac{3}{x-6}-\frac{5}{2x-8}=\frac{x-24}{x^{2}-10x+24},x \in \left(-\infty,4\right)\cup \left(4,6\right)\cup \left(6,+\infty\right)\)
- step2: Multiply both sides of the equation by LCD:
\(\left(\frac{3}{x-6}-\frac{5}{2x-8}\right)\times 2\left(x-4\right)\left(x-6\right)=\frac{x-24}{x^{2}-10x+24}\times 2\left(x-4\right)\left(x-6\right)\)
- step3: Simplify the equation:
\(x+6=2x-48\)
- step4: Move the expression to the left side:
\(x-2x=-48-6\)
- step5: Add and subtract:
\(-x=-48-6\)
- step6: Add and subtract:
\(-x=-54\)
- step7: Change the signs:
\(x=54\)
- step8: Check if the solution is in the defined range:
\(x=54,x \in \left(-\infty,4\right)\cup \left(4,6\right)\cup \left(6,+\infty\right)\)
- step9: Find the intersection:
\(x=54\)
Here are the solutions for each of the equations provided:
1. **Equation (6)**:
\[
\frac{7 x}{x^{2}+x}-\frac{5}{x}=\frac{3}{x+1}
\]
- **Solution**: \( x = -5 \)
2. **Equation (7)**:
\[
\frac{3}{x-2}+\frac{x+3}{4-x^{2}}=\frac{6}{x+2}
\]
- **Solution**: \( x = \frac{15}{4} \) or \( x = 3.75 \)
3. **Equation (8)**:
\[
\frac{3}{x-6}-\frac{5}{2 x-8}=\frac{x-24}{x^{2}-10 x+24}
\]
- **Solution**: \( x = 54 \)
4. **Equation (9)**:
\[
\frac{2 x+1}{x}-\frac{5 x}{x^{2}-4 x}=2
\]
- **Solution**: \( x = -1 \)
If you need further assistance or explanations for any of these solutions, feel free to ask!
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