12-5r=8

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Solution for 12-5r=8 equation: 


Simplifying
12 + -5r = 8

Solving
12 + -5r = 8

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 + -5r = 8 + -12

Combine like terms: 12 + -12 = 0
0 + -5r = 8 + -12
-5r = 8 + -12

Combine like terms: 8 + -12 = -4
-5r = -4

Divide each side by '-5'.
r = 0.8

Simplifying
r = 0.8

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