Question

12x + 8x + 3 + x
Is it
3x+12
-9x+6 2/3
21x+3
24x
-15x+8.3

Answer 1

see explanation

Explanation:

a bit more info is needed so this may be wrong.

so first you add up the x values which is 12x+8x+x=21x

then you can see we have a problem, we dont know the x value so the answer would be 21x +3

but we can go a bit further to get an answer as 3(7x+1)

this is also known as factorisation.

so ans: 3(7x+1)