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Algebra Homework Help : Simplification - Combining Like Terms


Combine the like terms in each of the following and type only the answer (simplified expression) in the input box.
Leave no spaces when typing the answer.
EXAMPLE: 12y2 + 7y - 40 + 30y2-17y + 30 = 42y2-10y-10
Since there are multiple ways of writing an answer, it is possible the computer may mark a correct answer wrong.
So, please always check the explanation.


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1.

9x3 + 42x + 3 - 8x3 + 3x2 - 43x + 6 =
 
Hint      

2.

2x + 9-0.74x + 2.24 =
 
Hint      

3.

14x2y2 + 15x3y3 + 16x2y2 - 17x3y3 + 18x4y4 =
 
Hint      

4.

-6x - 8 + 3x - 14 =
 
Hint      

5.

35x2 - 26 + 14x2 - 39x - 14 =
 
Hint      

6.

-2.3x - 8.7 + 1.3x - 1.3 =
 
Hint      

7.

9x3-12x2 + 27x + 71 + 22x3 - 9x2 - 14x =
 
Hint      


 
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