Homework Help: Algebra help

Posted by marco on Wednesday, February 3, 2010 at 3:10pm.

m having an extremely tough time with integers in algebra when simplifying algebraic expressions. No matter which method I use I still end up confused and end up with a completely different answer.

Ex:

5t-{7t-[4r-3(t-7)]+6r}-4r

Algebra help - PsyDAG, Wednesday, February 3, 2010 at 4:49pm
Start from the inside out.

5t-{7t-[4r-3(t-7)]+6r}-4r

5t-{7t-[4r-3t + 21]+6r}-4r

5t-{7t-4r + 3t - 21+ 6r}-4r

5t-7t + 4r - 3t + 21 - 6r - 4r

Combine like terms.

I hope this helps.
Algebra help - marco, Thursday, February 4, 2010 at 8:49am
thanks this helps quite a bit.

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