a-9+2a=-3

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Solution for a-9+2a=-3 equation: 


a in (-oo:+oo)

a+2*a-9 = -3 // + 3

a+2*a-9+3 = 0

3*a-6 = 0 // + 6

3*a = 6 // : 3

a = 6/3

a = 2

a = 2

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