arigore arigore

07-03-2017
Mathematics

contestada

what is 13x - 7y + 4x?

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suavissomnia suavissomnia

07-03-2017

17X-7Y. You add or subtract the same variables, in this case you only have two x's and one y. So you add them, because you have a addition sign. 13x+4x and you leave the Y alone, because there is not another Y variable.

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