12=7x+4x+1

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Solution for 12=7x+4x+1 equation: 


x in (-oo:+oo)

12 = 7*x+4*x+1 // - 7*x+4*x+1

12-(7*x)-(4*x)-1 = 0

12-7*x-4*x-1 = 0

11-11*x = 0 // - 11

-11*x = -11 // : -11

x = -11/(-11)

x = 1

x = 1

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