Answer:
-8
Explanation:
Bring all the x to one side and all the y to the other side. Substitute the value of x into the equation then solve for y.
-3x+ 7y= 5x+ 2y
7y- 2y= 5x+ 3x
5y= 8x
when x= -5,
5y= -5(8)= -40
y= -40รท 5= -8
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