In second equation add 0.74 and y to both sides: 3.25x+0.74=y; Substitute y in the first equation: -4.5x-2(3.25x+0.74)=-12.5; Distribute multiplication over addition: -4.5x-6.50x -1.48=-12.5; Combine like terms and add 1.48 to both sides: -11x= -12.5+1.48; -11x= 11.02 divide both sides by -11; X= -11.02/11= -1.00(18) Y= 3.25• -1.00(18)+.74= -2.515(90)
