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((8*x)^1)/2+2 = 4 // - 4
((8*x)^1)/2-4+2 = 0
(8*x)/2-4+2 = 0
4*x-2 = 0 // + 2
4*x = 2 // : 4
x = 2/4
x = 1/2
x = 1/2
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