-3x-1+7x=39

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Solution for -3x-1+7x=39 equation: 


x in (-oo:+oo)

7*x-3*x-1 = 39 // - 39

7*x-3*x-39-1 = 0

4*x-40 = 0 // + 40

4*x = 40 // : 4

x = 40/4

x = 10

x = 10

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