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(5/6)*x-x+1/5 = -22/15 // + -22/15
(5/6)*x-x+1/5-(-22/15) = 0
(5/6)*x-x+1/5+22/15 = 0
5/3-1/6*x = 0 // - 5/3
-1/6*x = -5/3 // : -1/6
x = -5/3/(-1/6)
x = 10
x = 10
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