Answer:
r=8
Step-by-step explanation:
To solve for r, we have to get r by itself. We have to preform the opposite of what is being done to the equation.
r/4-17= -15
First, move all the numbers to the same side. Add 17 to both sides, since it is being subtracted.
r/4-17+17= -15+17
r/4= 2
Now, we have r/4 alone. r is being divided by 4. To undo this, multiply both sides by 4.
4*r/4=2*4
r=8
