Given the equation and solution , find the missing coefficient. -6x+7=8x+______ Solution: x= -4

asked Sep 10, 2017 178k views

4 votes

Given the equation and solution , find the missing coefficient.

-6x+7=8x+______
Solution: x= -4

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5 votes

-6x + 7 = 8x + A

let x = -4
-6(-4) + 7 = 8(-4) + A
24 + 7 = -32 + A
31 + 32 = -32 + 32 + A
63 = 0 + A
A = 63

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