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3*(x-5) = 66/11 // - 66/11
3*(x-5)-(66/11) = 0
3*(x-5)-6 = 0
3*(x-5)-6 = 0
3*x-21 = 0
3*x-21 = 0
3*x-21 = 0 // + 21
3*x = 21 // : 3
x = 21/3
x = 7
x = 7
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