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(1/3)*(2*x-1) = 7-(3*x) // - 7-(3*x)
(1/3)*(2*x-1)+3*x-7 = 0
1/3*(2*x-1)+3*x-7 = 0
1/3*(2*x-1)+3*x-7 = 0
11/3*x-7-1/3 = 0
11/3*x-22/3 = 0
11/3*x-22/3 = 0
11/3*x-22/3 = 0 // + 22/3
11/3*x = 22/3 // : 11/3
x = 22/3/11/3
x = 2
x = 2
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