Question

7 x - 7; x = 4!!!???

Answer 1

Answer: 21 x=4 ​

Solve the system of equations

Steps:

​ Evaluate

{ 7x−7 x=4 ​

Calculate

{ x=4 21 ​

Solution

{ 21 x=4 ​

Answer 2

Is the problem, what is 7x-7 if x=4?

If so,

7(4) - 7 = 21