Question

2x+2x+4x+4x=144
whats the value of x?

Answer 1

add the x s, and divide both sides by 12.

Answer 2

12x=144
12x/12=144/12

OK?

Answer 3

Add the like terms which gives you 12 then divide it by 144 which gives you 12. So x=12. Plug it in to make sure it equals 144.

Answer 4

@Greenpride, i know what you meant, but divide by 144 means

12/144 not 144/12

Answer 5

Thank you for pointing out my mistake. And yes it is 144/12