Answer
Neither \( 19x = 24 \) nor \( 11y = 22 \) can be derived from the original system of equations by multiplying and adding to eliminate a variable.
Solution
Solve the system of equations by following steps:
- step0: Solution:
\(\left\{ \begin{array}{l}19x=24\\11y=22\end{array}\right.\)
- step1: Calculate:
\(\left\{ \begin{array}{l}x=\frac{24}{19}\\y=2\end{array}\right.\)
- step2: Check the solution:
\(\left\{ \begin{array}{l}x=\frac{24}{19}\\y=2\end{array}\right.\)
- step3: Rewrite:
\(\left(x,y\right) = \left(\frac{24}{19},2\right)\)
Solve the system of equations \( 2 x + 3 y = 6; 5 x + 2 y = 4 \).
Solve the system of equations by following steps:
- step0: Solve using the substitution method:
\(\left\{ \begin{array}{l}2x+3y=6\\5x+2y=4\end{array}\right.\)
- step1: Solve the equation:
\(\left\{ \begin{array}{l}x=\frac{6-3y}{2}\\5x+2y=4\end{array}\right.\)
- step2: Substitute the value of \(x:\)
\(5\times \frac{6-3y}{2}+2y=4\)
- step3: Simplify:
\(\frac{5\left(6-3y\right)}{2}+2y=4\)
- step4: Multiply both sides of the equation by LCD:
\(\left(\frac{5\left(6-3y\right)}{2}+2y\right)\times 2=4\times 2\)
- step5: Simplify the equation:
\(30-11y=8\)
- step6: Move the constant to the right side:
\(-11y=8-30\)
- step7: Subtract the numbers:
\(-11y=-22\)
- step8: Change the signs:
\(11y=22\)
- step9: Divide both sides:
\(\frac{11y}{11}=\frac{22}{11}\)
- step10: Divide the numbers:
\(y=2\)
- step11: Substitute the value of \(y:\)
\(x=\frac{6-3\times 2}{2}\)
- step12: Calculate:
\(x=0\)
- step13: Calculate:
\(\left\{ \begin{array}{l}x=0\\y=2\end{array}\right.\)
- step14: Check the solution:
\(\left\{ \begin{array}{l}x=0\\y=2\end{array}\right.\)
- step15: Rewrite:
\(\left(x,y\right) = \left(0,2\right)\)
To determine which of the given equations could result from multiplication and addition to eliminate a variable in the system of equations, we first need to solve the original system of equations:
1. **Original System of Equations:**
\[
\begin{array}{l}
2x + 3y = 6 \\
5x + 2y = 4
\end{array}
\]
Solving this system, we find:
\[
(x, y) = (0, 2)
\]
2. **Given Equations:**
\[
\begin{array}{l}
19x = 24 \\
11y = 22
\end{array}
\]
Solving these equations, we find:
\[
(x, y) = \left(\frac{24}{19}, 2\right)
\]
3. **Analysis of Results:**
- The solution to the original system is \( (0, 2) \).
- The solution to the given equations is \( \left(\frac{24}{19}, 2\right) \).
Since both systems yield different values for \( x \) (0 vs. \(\frac{24}{19}\)), we can conclude that neither of the given equations \( 19x = 24 \) or \( 11y = 22 \) can be derived from the original system through multiplication and addition to eliminate a variable.
Thus, the answer is that neither equation could be the result of the operations on the original system.
Answered by UpStudy AI and reviewed by a Professional Tutor
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