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If x+y=-10 and x-y=2, what is the value of x?

1 Answer

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In order to solve this system for x, we can add both equations:


\begin{gathered} x+y+(x-y)=-10+2 \\ 2x=-8 \\ x=-(8)/(2) \\ x=-4 \end{gathered}

So the value of x is -4.

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