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

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


x in (-oo:+oo)

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

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

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

2/3*(90-1/2*x)-2*(90-x)+20 = 0

2/3*(90-1/2*x)-2*(90-x)+20 = 0

5/3*x-120+20 = 0

5/3*x-100 = 0

5/3*x-100 = 0

5/3*x-100 = 0 // + 100

5/3*x = 100 // : 5/3

x = 100/5/3

x = 60

x = 60

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