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 .

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )