-3+r=-12

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Solution for -3+r=-12 equation: 


Simplifying
-3 + r = -12

Solving
-3 + r = -12

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3 + r = -12 + 3

Combine like terms: -3 + 3 = 0
0 + r = -12 + 3
r = -12 + 3

Combine like terms: -12 + 3 = -9
r = -9

Simplifying
r = -9

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