r+8=12-2

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Solution for r+8=12-2 equation: 


Simplifying
r + 8 = 12 + -2

Reorder the terms:
8 + r = 12 + -2

Combine like terms: 12 + -2 = 10
8 + r = 10

Solving
8 + r = 10

Solving for variable 'r'.

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

Add '-8' to each side of the equation.
8 + -8 + r = 10 + -8

Combine like terms: 8 + -8 = 0
0 + r = 10 + -8
r = 10 + -8

Combine like terms: 10 + -8 = 2
r = 2

Simplifying
r = 2

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