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(5/3)*x = -131/3 // + -131/3
(5/3)*x-(-131/3) = 0
(5/3)*x+131/3 = 0
5/3*x+131/3 = 0 // - 131/3
5/3*x = -131/3 // : 5/3
x = -131/3/5/3
x = -131/5
x = -131/5
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