For r.

r/4 - 17 = - 15

r=

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

r=8

Step-by-step explanation:

r/4-17=-15

r/4=-15+17

r/4=2

r=2*4

r=8