-2r-6r=8-7r

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Solution for -2r-6r=8-7r equation: 


Simplifying
-2r + -6r = 8 + -7r

Combine like terms: -2r + -6r = -8r
-8r = 8 + -7r

Solving
-8r = 8 + -7r

Solving for variable 'r'.

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

Add '7r' to each side of the equation.
-8r + 7r = 8 + -7r + 7r

Combine like terms: -8r + 7r = -1r
-1r = 8 + -7r + 7r

Combine like terms: -7r + 7r = 0
-1r = 8 + 0
-1r = 8

Divide each side by '-1'.
r = -8

Simplifying
r = -8

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