-r-8r=-6r-15

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Solution for -r-8r=-6r-15 equation:


Simplifying
-1r + -8r = -6r + -15

Combine like terms: -1r + -8r = -9r
-9r = -6r + -15

Reorder the terms:
-9r = -15 + -6r

Solving
-9r = -15 + -6r

Solving for variable 'r'.

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

Add '6r' to each side of the equation.
-9r + 6r = -15 + -6r + 6r

Combine like terms: -9r + 6r = -3r
-3r = -15 + -6r + 6r

Combine like terms: -6r + 6r = 0
-3r = -15 + 0
-3r = -15

Divide each side by '-3'.
r = 5

Simplifying
r = 5

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