-4a+6=42

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Solution for -4a+6=42 equation: 


a in (-oo:+oo)

6-4*a = 42 // - 42

6-4*a-42 = 0

-4*a-36 = 0 // + 36

-4*a = 36 // : -4

a = 36/(-4)

a = -9

a = -9

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