-1.8r+15=5.7r

Solution for -1.8r+15=5.7r equation:

Simplifying
-1.8r + 15 = 5.7r

Reorder the terms:
15 + -1.8r = 5.7r

Solving
15 + -1.8r = 5.7r

Solving for variable 'r'.

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

Add '-5.7r' to each side of the equation.
15 + -1.8r + -5.7r = 5.7r + -5.7r

Combine like terms: -1.8r + -5.7r = -7.5r
15 + -7.5r = 5.7r + -5.7r

Combine like terms: 5.7r + -5.7r = 0.0
15 + -7.5r = 0.0

Add '-15' to each side of the equation.
15 + -15 + -7.5r = 0.0 + -15

Combine like terms: 15 + -15 = 0
0 + -7.5r = 0.0 + -15
-7.5r = 0.0 + -15

Combine like terms: 0.0 + -15 = -15
-7.5r = -15

Divide each side by '-7.5'.
r = 2

Simplifying
r = 2