3a+2=-1

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Solution for 3a+2=-1 equation: 


a in (-oo:+oo)

3*a+2 = -1 // + 1

3*a+1+2 = 0

3*a+3 = 0 // - 3

3*a = -3 // : 3

a = -3/3

a = -1

a = -1

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