What is the reasoning for each step in this solution of the equation 3+4x-3x=4

Given         3 + 4x - 3x = 4      

   Next is Combine like terms, so you combined the one that has a variable  which is        4x-3x = 1x or just an x.

Combine like terms    3 + x = 4

Next is subtraction property of equality, so you will subtract 3 in both side like this...

3-3 + x = 4-3.

Subtraction Property of Equality   3-3 + x = 4-3

then the answer will x = 1 .

$12. that is my answer.

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2