15=4x+4x+7

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Solution for 15=4x+4x+7 equation: 


x in (-oo:+oo)

15 = 4*x+4*x+7 // - 4*x+4*x+7

15-(4*x)-(4*x)-7 = 0

15-4*x-4*x-7 = 0

8-8*x = 0 // - 8

-8*x = -8 // : -8

x = -8/(-8)

x = 1

x = 1

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