x/2+x-30=180 - solution

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Solution for x/2+x-30=180 equation:

x in (-oo:+oo)

x/2+x-30 = 180 // - 180

x/2+x-180-30 = 0

3/2*x-210 = 0 // + 210

3/2*x = 210 // : 3/2

x = 210/3/2

x = 140

x = 140

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