5r+7r=r

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Solution for 5r+7r=r equation: 


Simplifying
5r + 7r = r

Combine like terms: 5r + 7r = 12r
12r = r

Solving
12r = r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
12r + -1r = r + -1r

Combine like terms: 12r + -1r = 11r
11r = r + -1r

Combine like terms: r + -1r = 0
11r = 0

Divide each side by '11'.
r = 0

Simplifying
r = 0

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