7r=-63

To solve the equation 7r = -63, you need to isolate the variable r on one side of the equation.

You can do this by dividing both sides of the equation by 7:

7r ÷ 7 = -63 ÷ 7

Simplifying:

r = -9

Therefore, the solution to the equation 7r = -63 is r = -9.