[tex]6(4-x) + 6x = 24[/tex]
First, you develop, and you get:
[tex]24 - 6x + 6x = 24[/tex]
Then, you put known numbers apart (numbers without x), and unknown numbers apart (numbers with x), and remember that moving from a part to another change the sign of the number. So you get:
[tex]-6x + 6x = 24-24[/tex]
And now you operate, and u get:
[tex]0 = 0 [/tex]
Since we get the same number in the 2 parts ( the number 0), that means that the correct answer is A (all real numbers)
Hope this Helps! :)
