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(1/3)*(2*x-7) = 3 // - 3
(1/3)*(2*x-7)-3 = 0
1/3*(2*x-7)-3 = 0
1/3*(2*x-7)-3 = 0
2/3*x-16/3 = 0
2/3*x-16/3 = 0
2/3*x-16/3 = 0 // + 16/3
2/3*x = 16/3 // : 2/3
x = 16/3/2/3
x = 8
x = 8
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