Question 864305
Add the equations


7x + 2y = 10
-7x + y = -16
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0x + 3y = -6


So 3y = -6 ----> y = -2 (dividing both sides by 3)


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Now use y = -2 and any equation with x,y in it to find x



7x + 2y = 10



7x + 2(-2) = 10



7x - 4 = 10



7x = 10 + 4



7x = 14



x = 14/7



So the solutions are x = 2 and y = -2