-9+4x=31

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Solution for -9+4x=31 equation: 


x in (-oo:+oo)

4*x-9 = 31 // - 31

4*x-31-9 = 0

4*x-40 = 0 // + 40

4*x = 40 // : 4

x = 40/4

x = 10

x = 10

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