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Damm [24]
3 years ago
6

Which ordered pair is the solution to the system of equations?

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
4 0
\begin{cases}-3x+4y=-20\\y=x-4\end{cases}\\\\\\-3x+4(x-4)=-20\\\\-3x+4x-16=-20\\\\x-16=-20\quad|+16\\\\x-16+16=-20+16\\\\\boxed{x=-4}\\\\\\y=x-4\\\\y=-4-4\\\\\boxed{y=-8}

Answer C.
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