Answer:
All Real Numbers
Step-by-step explanation:
[tex]4(x + 6) = 2(2x + 12)[/tex]
divide both sides by 2
[tex]2(x + 6) = 2x + 12[/tex]
[tex]2x + 12 = 2x + 12[/tex]
this is enough to prove that it's all real numbers, but it can be simplified even more
[tex]2x=2x[/tex]
subtract 2x from both sides
[tex]0=0[/tex]
0 will always equal 0, so x is all real numbers
