Question

Verify the solution that z=4is the solution to 2z+7=15

Answer 1

Step-by-step explanation:

2z+7=15

2z=15-7

2z=8

z=8/2

z=4

Hence verified that 2z =4

Answer 2

if z=4,

then 2z+7=15

2z=15-7

2z=8

z=8/2

z=4

hope it helps you