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(-2/5)*x-6 = (7/3)*x-(6/5) // - (7/3)*x-(6/5)
(-2/5)*x-((7/3)*x)+6/5-6 = 0
(-2/5)*x+(-7/3)*x+6/5-6 = 0
-41/15*x-24/5 = 0 // + 24/5
-41/15*x = 24/5 // : -41/15
x = 24/5/(-41/15)
x = -72/41
x = -72/41
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