2(-9-b)=-18 - solution

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Solution for 2(-9-b)=-18 equation:

b in (-oo:+oo)

2*(-b-9) = -18 // + 18

2*(-b-9)+18 = 0

2*(-b-9)+18 = 0

-2*b = 0

-2*b = 0

-2*b = 0 // : -2

b = 0

b = 0

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