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5*((3*x)/7-2)-(3*x) = 0
5*((3*x)/7-2)-3*x = 0
5*(3/7*x-2)-3*x = 0
5*(3/7*x-2)-3*x = 0
-6/7*x-10 = 0
-6/7*x-10 = 0
-6/7*x-10 = 0 // + 10
-6/7*x = 10 // : -6/7
x = 10/(-6/7)
x = -35/3
x = -35/3
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