3(-x+9)=-1/2+2

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Solution for 3(-x+9)=-1/2+2 equation: 


x in (-oo:+oo)

3*(9-x) = 2-1/2 // - 2-1/2

3*(9-x)-(-1/2)-2 = 0

3*(9-x)+1/2-2 = 0

(2*3*(9-x))/2+1/2+(-2*2)/2 = 0

2*3*(9-x)-2*2+1 = 0

55-6*x-4 = 0

51-6*x = 0

(51-6*x)/2 = 0

(51-6*x)/2 = 0 // * 2

51-6*x = 0

51-6*x = 0 // - 51

-6*x = -51 // : -6

x = -51/(-6)

x = 17/2

x = 17/2

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