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1 answer:

ivann1987 [24]2 years ago

6 0

$\left\{\begin{array}{ccc}y=x+8&|\cdot(-3)\\y=3x-11\end{array}\right\\\underline{+\left\{\begin{array}{ccc}-3y=-3x-24\\y=3x-11\end{array}\right}\ \ \ |\text{add both sides of equations}\\.\ \ \ \ \ -2y=-35\\\\\text{Answer:}\ -3$

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