8r=-6r-7r

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Solution for 8r=-6r-7r equation: 


Simplifying
8r = -6r + -7r

Combine like terms: -6r + -7r = -13r
8r = -13r

Solving
8r = -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.
8r + 13r = -13r + 13r

Combine like terms: 8r + 13r = 21r
21r = -13r + 13r

Combine like terms: -13r + 13r = 0
21r = 0

Divide each side by '21'.
r = 0

Simplifying
r = 0

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