r=-6r-7r

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Solution for r=-6r-7r equation: 


Simplifying
r = -6r + -7r

Combine like terms: -6r + -7r = -13r
r = -13r

Solving
r = -13r

Solving for variable 'r'.

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

Add '13r' to each side of the equation.
r + 13r = -13r + 13r

Combine like terms: r + 13r = 14r
14r = -13r + 13r

Combine like terms: -13r + 13r = 0
14r = 0

Divide each side by '14'.
r = 0

Simplifying
r = 0

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