# Why Do You Isolate the Variable on the Left Side of the Inequality?

In math class we learned you have to do different mathematical functions to isolate a variable. If the is a positive number, subtract it from both sides, if there is a negative number, add it to both sides. Do this until the variable is isolated.
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 You are consistent then and not getting confused over which way the sign goes. You can then figure out what to do with the variable once it is by itself. Source(s) http://www.shmoop.com http://answers.yahoo.com/question/index?qid=201009...
 12x + 5 = y. Subtract 5 from both sides of the equation. Then divide both sides by 12. The 5 and 12 on the left cancel out, leaving only X. x = (y - 5) / 12. http://wiki.answers.com/Q/How_do_you_solve_the_ine...
 To isolate a variable in a linear equation,you need to http://www.chacha.com/question/how-do-you-isolate-...
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