-43=-b-4b+7 - solution

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Solution for -43=-b-4b+7 equation:

b in (-oo:+oo)

-43 = 7-b-(4*b) // - 7-b-(4*b)

b+4*b-43-7 = 0

5*b-50 = 0 // + 50

5*b = 50 // : 5

b = 50/5

b = 10

b = 10

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