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x in (-oo:+oo)
34 = 4*x+7*x-10 // - 4*x+7*x-10
10-(4*x)-(7*x)+34 = 0
10-4*x-7*x+34 = 0
44-11*x = 0 // - 44
-11*x = -44 // : -11
x = -44/(-11)
x = 4
x = 4
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