x+(x-4)/2=81

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Solution for x+(x-4)/2=81 equation: 


x in (-oo:+oo)

(x-4)/2+x = 81 // - 81

(x-4)/2+x-81 = 0

(x-4)/2+(2*x)/2+(-81*2)/2 = 0

x+2*x-81*2-4 = 0

3*x-162-4 = 0

3*x-166 = 0

(3*x-166)/2 = 0

(3*x-166)/2 = 0 // * 2

3*x-166 = 0

3*x-166 = 0 // + 166

3*x = 166 // : 3

x = 166/3

x = 166/3

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