W+y=25 and 9.95w+11.5y=276.65 solve for w in equation one: w+y=25 w=25-y then substitute w in equation two and solve for y: 9.95w+11.5y=276.65 9.95(25-y)+11.5y=276.65 1.55y+248.75=276.65 1.55y+248.75-248.75=276.65-248.75 1.55y=27.9 1.55y/1.55=27.9/1.55 y=27.9/1.55=18 y=18 then substitute y=18 into the first equation to solve for x: w+y=25 rewrite as w=25-y y=18 w=25-18 w=7 then are answer is w=7 and y=18
