2b+4+2b=20 - solution

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Solution for 2b+4+2b=20 equation:

b in (-oo:+oo)

2*b+2*b+4 = 20 // - 20

2*b+2*b-20+4 = 0

4*b-16 = 0 // + 16

4*b = 16 // : 4

b = 16/4

b = 4

b = 4

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