r-(-12)=5

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Solution for r-(-12)=5 equation: 


Simplifying
r + -1(-12) = 5

Multiply -1 * -12
r + 12 = 5

Reorder the terms:
12 + r = 5

Solving
12 + r = 5

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 + r = 5 + -12

Combine like terms: 12 + -12 = 0
0 + r = 5 + -12
r = 5 + -12

Combine like terms: 5 + -12 = -7
r = -7

Simplifying
r = -7

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