(3/2x+20)+2x=90 - solution

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Solution for (3/2x+20)+2x=90 equation:

x in (-oo:+oo)

(3/2)*x+2*x+20 = 90 // - 90

(3/2)*x+2*x-90+20 = 0

7/2*x-70 = 0 // + 70

7/2*x = 70 // : 7/2

x = 70/7/2

x = 20

x = 20

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