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

Ex:

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

- Algebra help -
**PsyDAG**, Wednesday, February 3, 2010 at 4:49pmStart 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 8:49amthanks this helps quite a bit.

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