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(3*x)/4-((1/2.5)/8) = 0
(3*x)/4-1/20 = 0
3/4*x-1/20 = 0 // + 1/20
3/4*x = 1/20 // : 3/4
x = 1/20/3/4
x = 1/15
x = 1/15
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