12-3r=3r

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Solution for 12-3r=3r equation:


Simplifying
12 + -3r = 3r

Solving
12 + -3r = 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
12 + -3r + -3r = 3r + -3r

Combine like terms: -3r + -3r = -6r
12 + -6r = 3r + -3r

Combine like terms: 3r + -3r = 0
12 + -6r = 0

Add '-12' to each side of the equation.
12 + -12 + -6r = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -6r = 0 + -12
-6r = 0 + -12

Combine like terms: 0 + -12 = -12
-6r = -12

Divide each side by '-6'.
r = 2

Simplifying
r = 2

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