2(5b-5)=30

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Solution for 2(5b-5)=30 equation: 


b in (-oo:+oo)

2*(5*b-5) = 30 // - 30

2*(5*b-5)-30 = 0

2*(5*b-5)-30 = 0

10*b-40 = 0

10*b-40 = 0

10*b-40 = 0 // + 40

10*b = 40 // : 10

b = 40/10

b = 4

b = 4

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