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(6*x)/7-((8*x)/2) = 10 // - 10
(6*x)/7-((8*x)/2)-10 = 0
(6*x)/7-4*x-10 = 0
-22/7*x-10 = 0 // + 10
-22/7*x = 10 // : -22/7
x = 10/(-22/7)
x = -35/11
x = -35/11
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