Solve for both systems 6z+2y=92 and 5z + 5y = 80

5z + 5y = 80

5z -5z+ 5y = 80-5z

5y = 80-5z

5y/5= 80-5z/5

y=16-z

6z+2y=92

6z+2(16-z)=92

6z+2(16) (2)(-z)=92

6z+32-2z=92

4z+32=92

4z+32-32=92-32

4z=60

4z/4=60/4

z=15

y=16-z

y=16-15=1