0=r+12

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Solution for 0=r+12 equation: 


Simplifying
0 = r + 12

Reorder the terms:
0 = 12 + r

Solving
0 = 12 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
0 + -1r = 12 + r + -1r
Remove the zero:
-1r = 12 + r + -1r

Combine like terms: r + -1r = 0
-1r = 12 + 0
-1r = 12

Divide each side by '-1'.
r = -12

Simplifying
r = -12

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