-25
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If: 26.9+12+w = 49.25 then w = 10.35
w = 13 add 28 to 180, then subtract 13 from 180 to balance equation. Then 4w + 11 w = 195. Add 4w + 11w =15w, so 15w=180, divide 180 by 15, w = 13 4(13) -28 + 11(13) + 13 = 180
If you mean: 15w -2(-w+12) then it is 17w -24 when simplified
-13
Without an equality sign the given expression is not an equation but it can be simplified to: W-15