Posted by **Angela** on Sunday, November 6, 2011 at 10:15am.

use the associative law of addition to write an equilalent expression

(r+st)+8

- algebra -
**MathMate**, Sunday, November 6, 2011 at 10:21am
In addition, you can place parentheses in any order without changing the results.

For example,

(2+4)+6

gives the same result as

2+(4+6)

By applying the above associative law, you will be able to write an equivalent expression from the given one.

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