Question

PLEASE HELP ME, I REALLY NEED HELP WITH THESE. PLEASE DONT ANSWER IF YOU DONT KNOW HOW. I REALLY NEED HELP!!!!!!!!!!!!!!!!

If a II b what is the value of x?

Answer for each please.

Answer 1

1)
5x + 15 =115
5x = 100
x = 20
2)
4x+28=68
4x = 40
x = 10
3)
10x-40=50
10x = 90
x = 9
4)
10x-40+50=180
10x+10=180
10x = 170
x = 17
5)
6x-10 +3x+100 = 180
9x+90=180
9x = 90
x = 9

Answer 2

1. x= 20
2. x=10
3. x=9
4. x=11
5. x=36.7