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x in (-oo:+oo)
(-1/2)*x+7 = 5*x-37 // - 5*x-37
(-1/2)*x-(5*x)+7+37 = 0
(-1/2)*x-5*x+7+37 = 0
44-11/2*x = 0 // - 44
-11/2*x = -44 // : -11/2
x = -44/(-11/2)
x = 8
x = 8
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