3r+2-8=12

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Solution for 3r+2-8=12 equation: 


Simplifying
3r + 2 + -8 = 12

Reorder the terms:
2 + -8 + 3r = 12

Combine like terms: 2 + -8 = -6
-6 + 3r = 12

Solving
-6 + 3r = 12

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + 3r = 12 + 6

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

Combine like terms: 12 + 6 = 18
3r = 18

Divide each side by '3'.
r = 6

Simplifying
r = 6

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