5r+2r-1=-36

Solution for 5r+2r-1=-36 equation:

Simplifying
5r + 2r + -1 = -36

Reorder the terms:
-1 + 5r + 2r = -36

Combine like terms: 5r + 2r = 7r
-1 + 7r = -36

Solving
-1 + 7r = -36

Solving for variable 'r'.

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

Add '1' to each side of the equation.
-1 + 1 + 7r = -36 + 1

Combine like terms: -1 + 1 = 0
0 + 7r = -36 + 1
7r = -36 + 1

Combine like terms: -36 + 1 = -35
7r = -35

Divide each side by '7'.
r = -5

Simplifying
r = -5