9r-3=87

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Solution for 9r-3=87 equation: 


Simplifying
9r + -3 = 87

Reorder the terms:
-3 + 9r = 87

Solving
-3 + 9r = 87

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3 + 9r = 87 + 3

Combine like terms: -3 + 3 = 0
0 + 9r = 87 + 3
9r = 87 + 3

Combine like terms: 87 + 3 = 90
9r = 90

Divide each side by '9'.
r = 10

Simplifying
r = 10

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