For the following system, if you isolated y in the first equation to use the Substitution Method, what express?

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For the following system, if you isolated y in the first equation to use the Substitution Method, what expression would you substitute into the second equation? 2x + y = 8 −x − y ...show more
Best Answer
2x + y = 8
-x - y = -5

y = 8 - 2x
-x - (8 - 2x) = -5
x = 3
y = 2
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  • Sue answered 2 years ago
    2x + y = 8
    2x - 2x +y = 8 - 2x
    y = 8 - 2x
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  • answerING answered 2 years ago
    8 − 2x
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