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(5/3)*x+7/4 = (-2/8)*x // - (-2/8)*x
(5/3)*x-((-2/8)*x)+7/4 = 0
(5/3)*x+(1/4)*x+7/4 = 0
23/12*x+7/4 = 0 // - 7/4
23/12*x = -7/4 // : 23/12
x = -7/4/23/12
x = -21/23
x = -21/23
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