Question

Solve for x.

3x - 4 = 13

Answer 1

x = 17/3 :) :) 

add 4 to both sides 
 then divide both sides by 3

Answer 2

We want the value of x.  Add 4 to both sides to cancel out the -4 on the left.
3x=17
Now divide both sides by 3 to get the answer.
x=5.66666667