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Topic: Solving equation
Replies: 13   Last Post: Nov 21, 2004 11:50 PM

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Amethyst

Posts: 5
Registered: 12/6/04
Solving equation
Posted: Oct 10, 2004 9:45 PM
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Hello - I am new to pre/algebra, and I have difficulty understanding
how to do equations with variables on both sides.

Like this:

7r - 1 = 5r - 13


I get rid of one and have:

7r = 5r - 12

Then I get rid of 5r and have:

3r = -12

r = -4 ?


Could someone tell me where I go wrong with this? Appreciate any
response.

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