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(3*x)/5-5 = x/15-(28/3) // - x/15-(28/3)
(3*x)/5-(x/15)+28/3-5 = 0
8/15*x+13/3 = 0 // - 13/3
8/15*x = -13/3 // : 8/15
x = -13/3/8/15
x = -65/8
x = -65/8
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