11.25=3.5r+r

Solution for 11.25=3.5r+r equation:

Simplifying
11.25 = 3.5r + r

Combine like terms: 3.5r + r = 4.5r
11.25 = 4.5r

Solving
11.25 = 4.5r

Solving for variable 'r'.

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

Add '-4.5r' to each side of the equation.
11.25 + -4.5r = 4.5r + -4.5r

Combine like terms: 4.5r + -4.5r = 0.0
11.25 + -4.5r = 0.0

Add '-11.25' to each side of the equation.
11.25 + -11.25 + -4.5r = 0.0 + -11.25

Combine like terms: 11.25 + -11.25 = 0.00
0.00 + -4.5r = 0.0 + -11.25
-4.5r = 0.0 + -11.25

Combine like terms: 0.0 + -11.25 = -11.25
-4.5r = -11.25

Divide each side by '-4.5'.
r = 2.5

Simplifying
r = 2.5