91=r+63

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Solution for 91=r+63 equation:


Simplifying
91 = r + 63

Reorder the terms:
91 = 63 + r

Solving
91 = 63 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
91 + -1r = 63 + r + -1r

Combine like terms: r + -1r = 0
91 + -1r = 63 + 0
91 + -1r = 63

Add '-91' to each side of the equation.
91 + -91 + -1r = 63 + -91

Combine like terms: 91 + -91 = 0
0 + -1r = 63 + -91
-1r = 63 + -91

Combine like terms: 63 + -91 = -28
-1r = -28

Divide each side by '-1'.
r = 28

Simplifying
r = 28

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