400=13.5(r)

Solution for 400=13.5(r) equation:

Simplifying
400 = 13.5(r)

Solving
400 = 13.5r

Solving for variable 'r'.

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

Add '-13.5r' to each side of the equation.
400 + -13.5r = 13.5r + -13.5r

Combine like terms: 13.5r + -13.5r = 0.0
400 + -13.5r = 0.0

Add '-400' to each side of the equation.
400 + -400 + -13.5r = 0.0 + -400

Combine like terms: 400 + -400 = 0
0 + -13.5r = 0.0 + -400
-13.5r = 0.0 + -400

Combine like terms: 0.0 + -400 = -400
-13.5r = -400

Divide each side by '-13.5'.
r = 29.62962963

Simplifying
r = 29.62962963