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(3*x)/2 = x/5-(39/5) // - x/5-(39/5)
(3*x)/2-(x/5)+39/5 = 0
13/10*x+39/5 = 0 // - 39/5
13/10*x = -39/5 // : 13/10
x = -39/5/13/10
x = -6
x = -6
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