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-3*x-3 = -(6*x)-7/3 // + -(6*x)-7/3
6*x-3*x-(-7/3)-3 = 0
6*x-3*x+7/3-3 = 0
3*x-2/3 = 0 // + 2/3
3*x = 2/3 // : 3
x = 2/3/3
x = 2/9
x = 2/9
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