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(4*x)/5-3 = 2-((9*x)/10) // - 2-((9*x)/10)
(4*x)/5+(9*x)/10-3-2 = 0
17/10*x-5 = 0 // + 5
17/10*x = 5 // : 17/10
x = 5/17/10
x = 50/17
x = 50/17
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