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(Combining Equations)What is the result of subtracting the second equation from the first ? -4x - 2y = -2x - 2y = 9
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(Combining Equations)What is the result of subtracting the second equation from the first ? -4x - 2y = -2x - 2y = 9

User Jan Bodnar
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14 votes

Subtract the second equation from the first,


\begin{gathered} -4x-2y=-2 \\ - \\ x-2y=9 \\ (-4x-x)-(2y-\lbrack-2y\rbrack)=-2-9 \\ -5x-2y+2y=-11 \\ -5x+0=-11 \\ -5x=-11 \\ \text{Divide both sides by -5} \\ (-5x)/(-5)=(-11)/(-5) \\ x=(11)/(5) \end{gathered}

User XGeo
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