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harina [27]
4 years ago
7

Solve the system of equations by substitution. x + y = x + 7y = 8

Mathematics
1 answer:
svlad2 [7]4 years ago
5 0

x+y=0 \\x+7y=8 \\ \\x=-y \\-y+7y=8\Longrightarrow y=\dfrac{8}{6} \\x+\dfrac{8}{6}=0\Longrightarrow x=-\dfrac{8}{6}

Hope this helps.

r3t40

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