139=-r+6(6r-6)

Solution for 139=-r+6(6r-6) equation:

Simplifying
139 = -1r + 6(6r + -6)

Reorder the terms:
139 = -1r + 6(-6 + 6r)
139 = -1r + (-6 * 6 + 6r * 6)
139 = -1r + (-36 + 36r)

Reorder the terms:
139 = -36 + -1r + 36r

Combine like terms: -1r + 36r = 35r
139 = -36 + 35r

Solving
139 = -36 + 35r

Solving for variable 'r'.

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

Add '-35r' to each side of the equation.
139 + -35r = -36 + 35r + -35r

Combine like terms: 35r + -35r = 0
139 + -35r = -36 + 0
139 + -35r = -36

Add '-139' to each side of the equation.
139 + -139 + -35r = -36 + -139

Combine like terms: 139 + -139 = 0
0 + -35r = -36 + -139
-35r = -36 + -139

Combine like terms: -36 + -139 = -175
-35r = -175

Divide each side by '-35'.
r = 5

Simplifying
r = 5