9r-2r=7

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Solution for 9r-2r=7 equation: 


Simplifying
9r + -2r = 7

Combine like terms: 9r + -2r = 7r
7r = 7

Solving
7r = 7

Solving for variable 'r'.

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

Divide each side by '7'.
r = 1

Simplifying
r = 1

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