If x+2y=12 and x-y=3 find the value of x+y

Kildareflare asked Feb 5, 2022

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Kildareflare asked Feb 5, 2022

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10 votes

The answer would be 9

x-y=3
x=3+y

X+2y=12
(3+y) + 2y=12
3y+3=12
3y=9
Y=3

X-(3)=3
X=6

X+y
6+3=9

Kim Schroeder answered Feb 11, 2022

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