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(2/5)*(2*x+11) = 3*(4*x-(3*x))+12 // - 3*(4*x-(3*x))+12
(2/5)*(2*x+11)-(3*(4*x-(3*x)))-12 = 0
(2/5)*(2*x+11)-3*(4*x-3*x)-12 = 0
2/5*(2*x+11)-3*x-12 = 0
2/5*(2*x+11)-3*x-12 = 0
22/5-11/5*x-12 = 0
-11/5*x-38/5 = 0
-11/5*x-38/5 = 0
-11/5*x-38/5 = 0 // + 38/5
-11/5*x = 38/5 // : -11/5
x = 38/5/(-11/5)
x = -38/11
x = -38/11
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