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(1/2)*(4*x-6)-(3*x) = 7 // - 7
(1/2)*(4*x-6)-(3*x)-7 = 0
(1/2)*(4*x-6)-3*x-7 = 0
1/2*(4*x-6)-3*x-7 = 0
1/2*(4*x-6)-3*x-7 = 0
-x-7-3 = 0
-x-10 = 0
-x-10 = 0
-x-10 = 0 // + 10
-x = 10 // * -1
x = -10
x = -10
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