-0.8+r=12

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Solution for -0.8+r=12 equation: 


Simplifying
-0.8 + r = 12

Solving
-0.8 + r = 12

Solving for variable 'r'.

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

Add '0.8' to each side of the equation.
-0.8 + 0.8 + r = 12 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + r = 12 + 0.8
r = 12 + 0.8

Combine like terms: 12 + 0.8 = 12.8
r = 12.8

Simplifying
r = 12.8

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