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(4/3)*x+6/3 = -2/3 // + -2/3
(4/3)*x+6/3-(-2/3) = 0
(4/3)*x+6/3+2/3 = 0
4/3*x+8/3 = 0 // - 8/3
4/3*x = -8/3 // : 4/3
x = -8/3/4/3
x = -2
x = -2
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