4-2m=-20

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Solution for 4-2m=-20 equation: 


m in (-oo:+oo)

4-(2*m) = -20 // + 20

4-(2*m)+20 = 0

4-2*m+20 = 0

24-2*m = 0 // - 24

-2*m = -24 // : -2

m = -24/(-2)

m = 12

m = 12

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