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Mathematics
Harold Farmer
4 July, 21:51
3 (2x+2y) - (x-7y) multiply and simplify
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Kirsten Mccarthy
5 July, 00:59
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6x+6y-x+7y
6x-x+6y+7y
5x+13y
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Alfonso Rojas
5 July, 01:18
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Now, I would get rid of the parenthesis, also remember a double negative is a positive.
6x + 6y-x+7y
Now add or subtract like terms.
5x+13y
You can check this by put x as 1 and y as 2, and putting it in to both equation. (I do this, you don't have to)
3 (2 + 4) - (1 - 14)
18 + 13 = 31
5 + 26 = 31
So it would be 5x+13y.
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