Which equation has every number as a solution?

A. 4x = 4x + 1

C. 4 (x+1) = 4x+1

B. 4x + 1 = 4x - 1

D. 4 (x+1) = 4x + 4

D.

Step-by-step explanation:

Lets look at equation D:

4 (x + 1) = 4x + 4

4x + 4 = 4x + 4.

The left side is identical to the right so

you can put x equal to any number and this equation will be true.

the answer is D

Step-by-step explanation:

the equation works with every number placed where the x is, for example:

4 (5+1) = 4*5 + 4

4*6=20+4

24=24

but it also works with

4 (11+1) = 4*11 + 4

4*12=44+4

48=48

and it also works with every possible number you can think!