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x in (-oo:+oo)
(3/4)*x-5 = 3 // - 3
(3/4)*x-5-3 = 0
3/4*x-8 = 0 // + 8
3/4*x = 8 // : 3/4
x = 8/3/4
x = 32/3
x = 32/3
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