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7-(2*x) = (-15/8)*(-(2/3)-2) // - (-15/8)*(-(2/3)-2)
7-(2*x)-((-15/8)*(-(2/3)-2)) = 0
(15/8)*(-2/3-2)-2*x+7 = 0
2-2*x = 0 // - 2
-2*x = -2 // : -2
x = -2/(-2)
x = 1
x = 1
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