-5r-5+7r=

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Solution for -5r-5+7r= equation: 


Simplifying
-5r + -5 + 7r = 0

Reorder the terms:
-5 + -5r + 7r = 0

Combine like terms: -5r + 7r = 2r
-5 + 2r = 0

Solving
-5 + 2r = 0

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + 2r = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 2r = 0 + 5
2r = 0 + 5

Combine like terms: 0 + 5 = 5
2r = 5

Divide each side by '2'.
r = 2.5

Simplifying
r = 2.5

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