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4*(x+2)-((1/2)*x) = 22 // - 22
4*(x+2)-((1/2)*x)-22 = 0
4*(x+2)+(-1/2)*x-22 = 0
4*(x+2)-x/2-22 = 0
(2*4*(x+2))/2-x/2+(-22*2)/2 = 0
2*4*(x+2)-x-22*2 = 0
7*x-44+16 = 0
7*x-28 = 0
(7*x-28)/2 = 0
(7*x-28)/2 = 0 // * 2
7*x-28 = 0
7*x-28 = 0 // + 28
7*x = 28 // : 7
x = 28/7
x = 4
x = 4
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