Answer
Eliminate\[y\]by multiplying the second equation by\[-2\] and then add the equations.
Work Step by Step
Given equations are\[2x+10y=9\ \text{and }8x+5y=7\].
To eliminate\[y\], second equation is multiplied by\[-2\], thus
\[\begin{align}
& \left( 8x+5y=7 \right)\times -2 \\
& -16x-10y=-14 \\
\end{align}\]
Now, add the new equation to the first equation to eliminate\[y\].
