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Simplify the following algebraic expression:
3(k + 7) + 4

Simplify the following algebraic expression:
3(2a - b + 2z) + 3

2007-08-12 08:02:33 · 6 answers · asked by Anonymous in Science & Mathematics Mathematics

6 answers

3(k + 7) + 4

1. Dist. the 3:
3k + 21 + 4

2. Collect like terms
3k + 25. [That's it. You are done]

3(2a - b + 2z) + 3

1. Dist. the 3:
6a - 3b + 6z + 3. [That's it. You are done (no like terms to collect)]

1. (Alternative) Bring in the 3
3(2a - b + 2z + 1) [Again, you are done.]

2007-08-12 08:11:07 · answer #1 · answered by Anonymous · 0 0

3(k + 7) + 4
3k + 21 + 4
you've got 2 regular numbers. those are the like terms. combine them:
3k + 25
that's as collected as you can get. 3k's and a regular number, 25.

3(2a - b +2z) + 3
6a -3b +6z +3
nothing can be collected here, there's all different!
you've got some a's, some b's, some z's, and a regular number.

2007-08-12 15:11:49 · answer #2 · answered by Anonymous · 0 0

3k + 21 + 4 becomes:
3k + 25


6a-3b+6z + 3 the 3 is distributed to each term inside the parenthesis

2007-08-12 15:14:22 · answer #3 · answered by 037 G 6 · 0 0

3k + 21 + 4 = 3k + 25
6a - 3b + 6z + 3

2007-08-12 15:10:02 · answer #4 · answered by kellenraid 6 · 0 0

3(k + 7) + 4
3k + 21 + 4
3k + 25

3(2a - b - 2z) + 3
6a - 3b - 6z + 3

2007-08-16 09:29:14 · answer #5 · answered by Jun Agruda 7 · 3 0

3k + 25
6a - 3b +6z +3

why can't you do your own homework?

2007-08-12 15:10:16 · answer #6 · answered by Elle G 1 · 0 0

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