Answer:
b) add x + 3x
C) subtract 20 on both sides
D) Divide 4 on both sides
E) X = 40 is the final answer.
Step-by-step explanation:
B) Because you are adding like terms
C) 4x + 20 = 180
-20 -20
which gives you 4x=160
D) 4x = 160
4 4
Resulting E which is your final answer.
