3r-18=6

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Solution for 3r-18=6 equation: 


Simplifying
3r + -18 = 6

Reorder the terms:
-18 + 3r = 6

Solving
-18 + 3r = 6

Solving for variable 'r'.

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

Add '18' to each side of the equation.
-18 + 18 + 3r = 6 + 18

Combine like terms: -18 + 18 = 0
0 + 3r = 6 + 18
3r = 6 + 18

Combine like terms: 6 + 18 = 24
3r = 24

Divide each side by '3'.
r = 8

Simplifying
r = 8

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