6r-18=3r+9

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Solution for 6r-18=3r+9 equation:


Simplifying
6r + -18 = 3r + 9

Reorder the terms:
-18 + 6r = 3r + 9

Reorder the terms:
-18 + 6r = 9 + 3r

Solving
-18 + 6r = 9 + 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.
-18 + 6r + -3r = 9 + 3r + -3r

Combine like terms: 6r + -3r = 3r
-18 + 3r = 9 + 3r + -3r

Combine like terms: 3r + -3r = 0
-18 + 3r = 9 + 0
-18 + 3r = 9

Add '18' to each side of the equation.
-18 + 18 + 3r = 9 + 18

Combine like terms: -18 + 18 = 0
0 + 3r = 9 + 18
3r = 9 + 18

Combine like terms: 9 + 18 = 27
3r = 27

Divide each side by '3'.
r = 9

Simplifying
r = 9

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