x+1/2x=100 - solution

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Solution for x+1/2x=100 equation:

x in (-oo:+oo)

x+(1/2)*x = 100 // - 100

x+(1/2)*x-100 = 0

3/2*x-100 = 0 // + 100

3/2*x = 100 // : 3/2

x = 100/3/2

x = 200/3

x = 200/3

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