2a+2=-20

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Solution for 2a+2=-20 equation: 


a in (-oo:+oo)

2*a+2 = -20 // + 20

2*a+2+20 = 0

2*a+22 = 0 // - 22

2*a = -22 // : 2

a = -22/2

a = -11

a = -11

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