1/2(b)(9)=90^2 - solution

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Solution for 1/2(b)(9)=90^2 equation:

b in (-oo:+oo)

9*(1/2)*b = 90^2 // - 90^2

9*(1/2)*b-90^2 = 0

9/2*b-8100 = 0 // + 8100

9/2*b = 8100 // : 9/2

b = 8100/9/2

b = 1800

b = 1800

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