The answer is 9/23 you simply both sides of the equation, subtract 7x from both sides, divide both sides by -23
Answer:
120-x
Step-by-step explanation:
If x is already less, then you don't need absolute value
If you draw more of those triangles, there will be 6 that can fit, so find area of 1 triangle and multiply it by 6. Write that number down and then do Pi r squared to find the area of the circle, then do circle area minus triangles area when you get that, divide it by 6. That is the area of the white region so then do Pi R squared again and then subtract the white area from that
First we'll substitute
with 

Then we can separate this.

Then we'll solve this.



Then we'll plug in to find the extraneous solutions (if any)
