What is the value of r in the equation 4r - 8 = 5r + 12?

Solution:

Given:

4r - 8 = 5r + 12

Now we have to arrange the like terms by transposing,

5r - 4r = - 8 - 12

By further calculation

r = -20

Therefore,

the value of r is -20.

What is the value of r in the equation 4r - 8 = 5r + 12?

Summary:

The value of r in the equation 4r - 8 = 5r + 12 is -20.