-15=9r

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Solution for -15=9r equation:


Simplifying
-15 = 9r

Solving
-15 = 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.
-15 + -9r = 9r + -9r

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

Add '15' to each side of the equation.
-15 + 15 + -9r = 0 + 15

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

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

Divide each side by '-9'.
r = -1.666666667

Simplifying
r = -1.666666667

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