12r-5r+2.6=8.2

Solution for 12r-5r+2.6=8.2 equation:

Simplifying
12r + -5r + 2.6 = 8.2

Reorder the terms:
2.6 + 12r + -5r = 8.2

Combine like terms: 12r + -5r = 7r
2.6 + 7r = 8.2

Solving
2.6 + 7r = 8.2

Solving for variable 'r'.

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

Add '-2.6' to each side of the equation.
2.6 + -2.6 + 7r = 8.2 + -2.6

Combine like terms: 2.6 + -2.6 = 0.0
0.0 + 7r = 8.2 + -2.6
7r = 8.2 + -2.6

Combine like terms: 8.2 + -2.6 = 5.6
7r = 5.6

Divide each side by '7'.
r = 0.8

Simplifying
r = 0.8