Math Solve for both systems: 7y+5z=7 and 8y + z = 8 Asked by AnneS2 on 16 Sep 06:29 Last updated by anonymous on 17 Sep 11:40

8y + z = 8 8y-8y + z = 8-8y z = 8-8y 7y+5z=7 7y+5(8-8y)=7 7y+5(8) (5)(-8y)=7 7y+40-40y=7 40-33y=7 40-33y-40=7-40 -33y=-33 -33y/-33=-33/-33 y=1 z = 8-8y z = 8-8(1) z = 8-8=0