(x-30)-15=x/2 - solution

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Solution for (x-30)-15=x/2 equation:

x in (-oo:+oo)

x-30-15 = x/2 // - x/2

x-(x/2)-30-15 = 0

1/2*x-45 = 0 // + 45

1/2*x = 45 // : 1/2

x = 45/1/2

x = 90

x = 90

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