\( \begin{array}{c}4 x-5 y=-9 \\ -4 x+y=-7\end{array} \)
\( y= \)
Answer
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Answer
\( \text{Divide by } -4: y = \frac{-16}{-4} \)
Steps
Step 1 ：\( \text{Add the two equations: } (4x - 5y) + (-4x + y) = -9 + (-7) \)
Step 2 ：\( \text{Simplify: } (-4y) = (-16) \)
Step 3 ：\( \text{Divide by } -4: y = \frac{-16}{-4} \)
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