Question

3z+21= 5(2+2) find and verify​

Answer 1

3z+21=10+10

3z+21=20

3z=20-21

3z=-1

z=-1/2

Answer 2

Step-by-step explanation:

3z+21= 10+10

or, 3z+21=20

or,3z=20-21

or,3z= -1

or,z= -1/3