112=r*28

Solution for 112=r*28 equation:

Simplifying
112 = r * 28

Reorder the terms for easier multiplication:
112 = 28r

Solving
112 = 28r

Solving for variable 'r'.

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

Add '-28r' to each side of the equation.
112 + -28r = 28r + -28r

Combine like terms: 28r + -28r = 0
112 + -28r = 0

Add '-112' to each side of the equation.
112 + -112 + -28r = 0 + -112

Combine like terms: 112 + -112 = 0
0 + -28r = 0 + -112
-28r = 0 + -112

Combine like terms: 0 + -112 = -112
-28r = -112

Divide each side by '-28'.
r = 4

Simplifying
r = 4