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44 = 7*x-x+2 // - 7*x-x+2
x-(7*x)-2+44 = 0
x-7*x-2+44 = 0
42-6*x = 0 // - 42
-6*x = -42 // : -6
x = -42/(-6)
x = 7
x = 7
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