Question

Solve the following equation and check the answer. ​

Answer 1

Answer: 21/3 = 7. z = 4

Step-by-step explanation: To get 7 as the answer, the numerator should be 21 if the denominator is 3. So 5z + 1 = 21. 5x4+1 = 21. So z = 4.

Answer 2

Answer :

5z+1/3=7

5z+1=7×3

5z+1=21

5z=21-1

5z=20

z=20/5

z=4