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4 votes
Solve the system using substitution
x+y=2
-2×+y=2

1 Answer

1 vote
x+y=2
y=x-2

-2x+y=2
-2x+(x-2)=2
-x-2=2
-x=4
X=4

4+y=2
Y=-2

(4,-2)
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