-2a+4=-16

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Solution for -2a+4=-16 equation: 


a in (-oo:+oo)

4-2*a = -16 // + 16

4-2*a+16 = 0

20-2*a = 0 // - 20

-2*a = -20 // : -2

a = -20/(-2)

a = 10

a = 10

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