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(3*x)/2 = 2*x-10 // - 2*x-10
(3*x)/2-(2*x)+10 = 0
(3*x)/2-2*x+10 = 0
10-1/2*x = 0 // - 10
-1/2*x = -10 // : -1/2
x = -10/(-1/2)
x = 20
x = 20
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