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x in (-oo:+oo)
-(6*x)-10 = -13 // + 13
13-(6*x)-10 = 0
13-6*x-10 = 0
3-6*x = 0 // - 3
-6*x = -3 // : -6
x = -3/(-6)
x = 1/2
x = 1/2
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