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