2r-15=27

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Solution for 2r-15=27 equation: 


Simplifying
2r + -15 = 27

Reorder the terms:
-15 + 2r = 27

Solving
-15 + 2r = 27

Solving for variable 'r'.

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

Add '15' to each side of the equation.
-15 + 15 + 2r = 27 + 15

Combine like terms: -15 + 15 = 0
0 + 2r = 27 + 15
2r = 27 + 15

Combine like terms: 27 + 15 = 42
2r = 42

Divide each side by '2'.
r = 21

Simplifying
r = 21

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