8r+12+r=

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Solution for 8r+12+r= equation:


Simplifying
8r + 12 + r = 0

Reorder the terms:
12 + 8r + r = 0

Combine like terms: 8r + r = 9r
12 + 9r = 0

Solving
12 + 9r = 0

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + 9r = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 9r = 0 + -12
9r = 0 + -12

Combine like terms: 0 + -12 = -12
9r = -12

Divide each side by '9'.
r = -1.333333333

Simplifying
r = -1.333333333

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