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x in (-oo:+oo)
4*(8-(6*x)) = 320 // - 320
4*(8-(6*x))-320 = 0
4*(8-6*x)-320 = 0
4*(8-6*x)-320 = 0
-24*x-288 = 0
-24*x-288 = 0
-24*x-288 = 0 // + 288
-24*x = 288 // : -24
x = 288/(-24)
x = -12
x = -12
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