2(3b+9)=42

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Solution for 2(3b+9)=42 equation: 


b in (-oo:+oo)

2*(3*b+9) = 42 // - 42

2*(3*b+9)-42 = 0

2*(3*b+9)-42 = 0

6*b-24 = 0

6*b-24 = 0

6*b-24 = 0 // + 24

6*b = 24 // : 6

b = 24/6

b = 4

b = 4

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