7b+6+6b=123 - solution

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Solution for 7b+6+6b=123 equation:

b in (-oo:+oo)

7*b+6*b+6 = 123 // - 123

7*b+6*b-123+6 = 0

13*b-117 = 0 // + 117

13*b = 117 // : 13

b = 117/13

b = 9

b = 9

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