7r+2r=63

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Solution for 7r+2r=63 equation: 


Simplifying
7r + 2r = 63

Combine like terms: 7r + 2r = 9r
9r = 63

Solving
9r = 63

Solving for variable 'r'.

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

Divide each side by '9'.
r = 7

Simplifying
r = 7

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