180=9r+27

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Solution for 180=9r+27 equation:


Simplifying
180 = 9r + 27

Reorder the terms:
180 = 27 + 9r

Solving
180 = 27 + 9r

Solving for variable 'r'.

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

Add '-9r' to each side of the equation.
180 + -9r = 27 + 9r + -9r

Combine like terms: 9r + -9r = 0
180 + -9r = 27 + 0
180 + -9r = 27

Add '-180' to each side of the equation.
180 + -180 + -9r = 27 + -180

Combine like terms: 180 + -180 = 0
0 + -9r = 27 + -180
-9r = 27 + -180

Combine like terms: 27 + -180 = -153
-9r = -153

Divide each side by '-9'.
r = 17

Simplifying
r = 17

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