2+3r=12

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Solution for 2+3r=12 equation: 


Simplifying
2 + 3r = 12

Solving
2 + 3r = 12

Solving for variable 'r'.

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

Add '-2' to each side of the equation.
2 + -2 + 3r = 12 + -2

Combine like terms: 2 + -2 = 0
0 + 3r = 12 + -2
3r = 12 + -2

Combine like terms: 12 + -2 = 10
3r = 10

Divide each side by '3'.
r = 3.333333333

Simplifying
r = 3.333333333

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