Posted by **Megan** on Tuesday, February 5, 2013 at 5:21pm.

Hello! I am needing some help on Algebra! It is hard !

Can you explain how to Simplify Algebraic Expressions? The easiest way? I have a test over it Friday, and i can't understand it at all!

Can you help with these and explain?

-12z+4(z-9)+30+z

and

4(y-3)+9-3y

- Math -
**Ms. Sue**, Tuesday, February 5, 2013 at 5:27pm
-12z+4(z-9)+30+z

Combine like terms.

-12z + 4z - 36 + 30 + z

-7z - 6

Follow the same procedure for the next problem. I'll be glad to check your answer.

- Math -
**Megan**, Tuesday, February 5, 2013 at 5:31pm
4(y-3)+9-3y

I come out and get

4y-12+9-3y

What do I do now? I'm so confused! I don't know it !:(

- Math -
**Ms. Sue**, Tuesday, February 5, 2013 at 5:34pm
Now combine like terms.

4y-12+9-3y

4y - 3y = y

9 - 12 = -3

4y-12+9-3y = y - 3

- Math -
**Megan**, Tuesday, February 5, 2013 at 5:39pm
Now how would I do this? This is so confusing.

LUNCH You bought 3 pieces of chicken that cost x dollars each, a salad for $3, and a drink for $1.

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