189-7r=81r+162

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Solution for 189-7r=81r+162 equation:


Simplifying
189 + -7r = 81r + 162

Reorder the terms:
189 + -7r = 162 + 81r

Solving
189 + -7r = 162 + 81r

Solving for variable 'r'.

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

Add '-81r' to each side of the equation.
189 + -7r + -81r = 162 + 81r + -81r

Combine like terms: -7r + -81r = -88r
189 + -88r = 162 + 81r + -81r

Combine like terms: 81r + -81r = 0
189 + -88r = 162 + 0
189 + -88r = 162

Add '-189' to each side of the equation.
189 + -189 + -88r = 162 + -189

Combine like terms: 189 + -189 = 0
0 + -88r = 162 + -189
-88r = 162 + -189

Combine like terms: 162 + -189 = -27
-88r = -27

Divide each side by '-88'.
r = 0.3068181818

Simplifying
r = 0.3068181818

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