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12-((4/5)*(x+14)) = 4 // - 4
12-((4/5)*(x+14))-4 = 0
(-4/5)*(x+14)-4+12 = 0
12-4/5*(x+14)-4 = 0
12-4/5*(x+14)-4 = 0
12-4/5*x-76/5 = 0
-4/5*x-16/5 = 0
-4/5*x-16/5 = 0
-4/5*x-16/5 = 0 // + 16/5
-4/5*x = 16/5 // : -4/5
x = 16/5/(-4/5)
x = -4
x = -4
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