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(2/5)*x+6/5 = (7/2)*x+29/10+1/2 // - (7/2)*x+29/10+1/2
(2/5)*x-((7/2)*x)+6/5-(29/10)-(1/2) = 0
(2/5)*x+(-7/2)*x+6/5-29/10-1/2 = 0
-31/10*x-11/5 = 0 // + 11/5
-31/10*x = 11/5 // : -31/10
x = 11/5/(-31/10)
x = -22/31
x = -22/31
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