7y+15=3x
15=3x+2y
Bring all terms with x and y on one side.
-3x +7y = -15
3x+2y=15 Now we can add these equations.
9y = 0
y = 0
Lets find value of x.
7*0+15=3x
3x =15
x=5
Answer x=5, y=0.
(5,0)
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