12r-4r=4

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Solution for 12r-4r=4 equation:


Simplifying
12r + -4r = 4

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

Solving
8r = 4

Solving for variable 'r'.

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

Divide each side by '8'.
r = 0.5

Simplifying
r = 0.5

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