63=3(r+1)

Solution for 63=3(r+1) equation:

Simplifying
63 = 3(r + 1)

Reorder the terms:
63 = 3(1 + r)
63 = (1 * 3 + r * 3)
63 = (3 + 3r)

Solving
63 = 3 + 3r

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-3r' to each side of the equation.
63 + -3r = 3 + 3r + -3r

Combine like terms: 3r + -3r = 0
63 + -3r = 3 + 0
63 + -3r = 3

Add '-63' to each side of the equation.
63 + -63 + -3r = 3 + -63

Combine like terms: 63 + -63 = 0
0 + -3r = 3 + -63
-3r = 3 + -63

Combine like terms: 3 + -63 = -60
-3r = -60

Divide each side by '-3'.
r = 20

Simplifying
r = 20