2(-3a+7)=-28

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Solution for 2(-3a+7)=-28 equation: 


a in (-oo:+oo)

2*(7-3*a) = -28 // + 28

2*(7-3*a)+28 = 0

2*(7-3*a)+28 = 0

42-6*a = 0

42-6*a = 0

42-6*a = 0 // - 42

-6*a = -42 // : -6

a = -42/(-6)

a = 7

a = 7

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