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(2/5)*(3*x+9) = 4*(4-(2*x))+6 // - 4*(4-(2*x))+6
(2/5)*(3*x+9)-(4*(4-(2*x)))-6 = 0
(2/5)*(3*x+9)-4*(4-2*x)-6 = 0
2/5*(3*x+9)-4*(4-2*x)-6 = 0
2/5*(3*x+9)-4*(4-2*x)-6 = 0
46/5*x-62/5-6 = 0
46/5*x-92/5 = 0
46/5*x-92/5 = 0
46/5*x-92/5 = 0 // + 92/5
46/5*x = 92/5 // : 46/5
x = 92/5/46/5
x = 2
x = 2
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