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x in (-oo:+oo)
(1/2)*(6*x-12)+8 = 5*x-14 // - 5*x-14
(1/2)*(6*x-12)-(5*x)+8+14 = 0
(1/2)*(6*x-12)-5*x+8+14 = 0
1/2*(6*x-12)-5*x+8+14 = 0
1/2*(6*x-12)-5*x+8+14 = 0
8-2*x-6+14 = 0
2-2*x+14 = 0
16-2*x = 0
16-2*x = 0
16-2*x = 0 // - 16
-2*x = -16 // : -2
x = -16/(-2)
x = 8
x = 8
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