9r-9+r-1=

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Solution for 9r-9+r-1= equation:


Simplifying
9r + -9 + r + -1 = 0

Reorder the terms:
-9 + -1 + 9r + r = 0

Combine like terms: -9 + -1 = -10
-10 + 9r + r = 0

Combine like terms: 9r + r = 10r
-10 + 10r = 0

Solving
-10 + 10r = 0

Solving for variable 'r'.

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

Add '10' to each side of the equation.
-10 + 10 + 10r = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 10r = 0 + 10
10r = 0 + 10

Combine like terms: 0 + 10 = 10
10r = 10

Divide each side by '10'.
r = 1

Simplifying
r = 1

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