3a+2-4a=7

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Solution for 3a+2-4a=7 equation: 


a in (-oo:+oo)

3*a-(4*a)+2 = 7 // - 7

3*a-(4*a)-7+2 = 0

3*a-4*a-7+2 = 0

-a-5 = 0 // + 5

-a = 5 // * -1

a = -5

a = -5

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