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(2*x)/15 = 8.8 // - 8.8
(2*x)/15-8.8 = 0
2/15*x-8.8 = 0 // + 8.8
2/15*x = 8.8 // : 2/15
x = 8.8/2/15
x = 66.00000165
x = 66.00000165
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