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w in (-oo:+oo)
2*w+2 = 5*w+29 // - 5*w+29
2*w-(5*w)-29+2 = 0
2*w-5*w-29+2 = 0
-3*w-27 = 0 // + 27
-3*w = 27 // : -3
w = 27/(-3)
w = -9
w = -9
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