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(2/3)*(2*x-5) = -6 // + 6
(2/3)*(2*x-5)+6 = 0
2/3*(2*x-5)+6 = 0
2/3*(2*x-5)+6 = 0
4/3*x+8/3 = 0
4/3*x+8/3 = 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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