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(2/3)*x-((1/3)*x)-3/8 = -35/8 // + -35/8
(2/3)*x-((1/3)*x)-3/8-(-35/8) = 0
(2/3)*x+(-1/3)*x-3/8+35/8 = 0
1/3*x+4 = 0 // - 4
1/3*x = -4 // : 1/3
x = -4/1/3
x = -12
x = -12
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