9r-15-17r+9=

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Solution for 9r-15-17r+9= equation:


Simplifying
9r + -15 + -17r + 9 = 0

Reorder the terms:
-15 + 9 + 9r + -17r = 0

Combine like terms: -15 + 9 = -6
-6 + 9r + -17r = 0

Combine like terms: 9r + -17r = -8r
-6 + -8r = 0

Solving
-6 + -8r = 0

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + -8r = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -8r = 0 + 6
-8r = 0 + 6

Combine like terms: 0 + 6 = 6
-8r = 6

Divide each side by '-8'.
r = -0.75

Simplifying
r = -0.75

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