Answer:
x=1
Step-by-step explanation:
The first thing you would do is add 10x to itself and then to 5x.
This action will lead you to the equation of 15x-7=8.
The next thing you want to do is add 7 to itself and to 8.
This action will lead you to the equation of 15x=15
The last thing you need to do is divide by 15 to itself and then to the 15 on the other side of the equation. 15/15 is 1.