3(8+7b)=-39

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Solution for 3(8+7b)=-39 equation: 


b in (-oo:+oo)

3*(7*b+8) = -39 // + 39

3*(7*b+8)+39 = 0

3*(7*b+8)+39 = 0

21*b+63 = 0

21*b+63 = 0

21*b+63 = 0 // - 63

21*b = -63 // : 21

b = -63/21

b = -3

b = -3

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