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(1/3)*x+1/3 = -(2*x)-4/9 // + -(2*x)-4/9
(1/3)*x+2*x+1/3-(-4/9) = 0
(1/3)*x+2*x+1/3+4/9 = 0
7/3*x+7/9 = 0 // - 7/9
7/3*x = -7/9 // : 7/3
x = -7/9/7/3
x = -1/3
x = -1/3
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