8r-27=45

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Solution for 8r-27=45 equation: 


Simplifying
8r + -27 = 45

Reorder the terms:
-27 + 8r = 45

Solving
-27 + 8r = 45

Solving for variable 'r'.

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

Add '27' to each side of the equation.
-27 + 27 + 8r = 45 + 27

Combine like terms: -27 + 27 = 0
0 + 8r = 45 + 27
8r = 45 + 27

Combine like terms: 45 + 27 = 72
8r = 72

Divide each side by '8'.
r = 9

Simplifying
r = 9

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