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(1/2)*(6*x-4)+4*x-9 = 0
1/2*(6*x-4)+4*x-9 = 0
1/2*(6*x-4)+4*x-9 = 0
7*x-9-2 = 0
7*x-11 = 0
7*x-11 = 0
7*x-11 = 0 // + 11
7*x = 11 // : 7
x = 11/7
x = 11/7
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