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6/2-7*x+2 = (-4*x)/7 // - (-4*x)/7
6/2-7*x-((-4*x)/7)+2 = 0
(4/7)*x-7*x+6/2+2 = 0
5-45/7*x = 0 // - 5
-45/7*x = -5 // : -45/7
x = -5/(-45/7)
x = 7/9
x = 7/9
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