THIS IS DUE IN 10 MINUTES I WILL MARK BRAINLIEST, JUST HELP PLEASE! find the value of x in each case

Answer:
16
Step-by-step explanation:
Simplify 100+x+4x to 100+5x.
100+5x=180
Subtract 100 from both sides.
5x=180−100
Simplify 180−100 to 80.
5x=80
Divide both sides by 5.
x=80/5
Simplify 80/5 to 16.
x=16