Answer:
Step-by-step explanation:
This question isn't worded the greatest, there are two ways you can read this.
1. The quotient of a number and -9, increased by 10, is 11
2. The quotient of a number, and -9 increased by 10, is 11
The first equation will look like this

And the second will look like this

So I have solved for both (I personally believe the second way of reading the question is the correct way)
I am pretty sure the answer is H
t=D/r
Divide r by both sides to get t by itself.
The GCF of 15 and 25 would be 5
Times the bottom equation by -4 to cancel out the x’s.
Add the equations.
Solve for y.
Plug in y to find x.