Question

how to solve x-2y=8 and x=5-y using substitution method and showing work and please give me the correct answer

Answer 1

y = -1

Explanation:

Set up

x-2y = 8

Substitute 5-y for x

5 - y -2y = 8

Combine like terms

-3y + 5 = 8

Subtract 5 from both side

-3y = 3

Divide by -3

y = -1