Posted by **thaddeus** on Monday, October 2, 2006 at 5:59pm.

3-3r=4

Do you wish to solve for r?

Put r on one side and everything else on the other. First substract 3 from both sides.

3-3-3r = 4 - 3

combine.

-3r = 1

Multiply by -1

3r = -1

Divide both sides by 3

3r/3 = -1/3

r = -1/3

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