3-4a+a=-9

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Solution for 3-4a+a=-9 equation: 


a in (-oo:+oo)

a-(4*a)+3 = -9 // + 9

a-(4*a)+3+9 = 0

a-4*a+3+9 = 0

12-3*a = 0 // - 12

-3*a = -12 // : -3

a = -12/(-3)

a = 4

a = 4

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