3b+9-7b=5 - solution

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Solution for 3b+9-7b=5 equation:

b in (-oo:+oo)

3*b-(7*b)+9 = 5 // - 5

3*b-(7*b)-5+9 = 0

3*b-7*b-5+9 = 0

4-4*b = 0 // - 4

-4*b = -4 // : -4

b = -4/(-4)

b = 1

b = 1

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