2a-1=-3

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Solution for 2a-1=-3 equation: 


a in (-oo:+oo)

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

2*a-1+3 = 0

2*a+2 = 0 // - 2

2*a = -2 // : 2

a = -2/2

a = -1

a = -1

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