81=3r-6-6r

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Solution for 81=3r-6-6r equation:


Simplifying
81 = 3r + -6 + -6r

Reorder the terms:
81 = -6 + 3r + -6r

Combine like terms: 3r + -6r = -3r
81 = -6 + -3r

Solving
81 = -6 + -3r

Solving for variable 'r'.

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

Add '3r' to each side of the equation.
81 + 3r = -6 + -3r + 3r

Combine like terms: -3r + 3r = 0
81 + 3r = -6 + 0
81 + 3r = -6

Add '-81' to each side of the equation.
81 + -81 + 3r = -6 + -81

Combine like terms: 81 + -81 = 0
0 + 3r = -6 + -81
3r = -6 + -81

Combine like terms: -6 + -81 = -87
3r = -87

Divide each side by '3'.
r = -29

Simplifying
r = -29

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