Math Solve for both systems: 10z+3y=85 and 2y + z = 17 Asked by AnneS2 on 12 Sep 03:25 Last updated by anonymous on 13 Sep 14:44

2y + z = 17 2y-2y + z = 17-2y z = 17-2y 10z+3y=85 10(17-2y)+3y=85 10(17) (10)(-2y)+3y=85 170-20y+3y=85 170-17y=85 170-17y-170=85-170 -17y=-85 -17y/-17=-85/-17 y=5 z = 17-2y z = 17-2(5) z = 17-10=7