Respuesta :

Answer:

Try -17/22

Step-by-step explanation:

Multiply the numbers

r-1 • 5/22 =-1

Which is just

r- 5/22 =-1

Add 5/22 to both sides of the equation

r- 5/22 + 5/22 = -1 + 5/22

which equals r= -17/22