72=-6r-2r

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Solution for 72=-6r-2r equation:


Simplifying
72 = -6r + -2r

Combine like terms: -6r + -2r = -8r
72 = -8r

Solving
72 = -8r

Solving for variable 'r'.

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

Add '8r' to each side of the equation.
72 + 8r = -8r + 8r

Combine like terms: -8r + 8r = 0
72 + 8r = 0

Add '-72' to each side of the equation.
72 + -72 + 8r = 0 + -72

Combine like terms: 72 + -72 = 0
0 + 8r = 0 + -72
8r = 0 + -72

Combine like terms: 0 + -72 = -72
8r = -72

Divide each side by '8'.
r = -9

Simplifying
r = -9

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