12-r=32

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Solution for 12-r=32 equation: 


Simplifying
12 + -1r = 32

Solving
12 + -1r = 32

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 + -1r = 32 + -12

Combine like terms: 12 + -12 = 0
0 + -1r = 32 + -12
-1r = 32 + -12

Combine like terms: 32 + -12 = 20
-1r = 20

Divide each side by '-1'.
r = -20

Simplifying
r = -20

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