Question

Solve the system using the substitution method.
x - 7y = 23
8x - y = 74

Answer 1

y = -2

x = 9

Explanation:

x - 7y = 23

8x - y = 74

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Extra:

(x - 7y = 23) -8

-8x + 56y = -184

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-8x + 56y = -184

8x - y = 74

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55y = -110

÷55 ÷55

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y = -2

x - 7y = 23

x - 7(-2) = 23

x + 14 = 23

-14 -14

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x = 9

I hope this helps!