7b+9=79

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Solution for 7b+9=79 equation: 


b in (-oo:+oo)

7*b+9 = 79 // - 79

7*b-79+9 = 0

7*b-70 = 0 // + 70

7*b = 70 // : 7

b = 70/7

b = 10

b = 10

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