Identify the like terms among the following and group them:

7xy, 19x, 1, 5y, x, 3yx, 15, –13y, 6x, 12xy, −5, 16y, −9x, 15xy, 23, 45y

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Solution

7xy, 15xy, 3yx are like terms because they have the same exponent of the same variable.

19x, x, 6x, -9x are like terms because they have the same exponent of the same variable.

1, 15, -5, 23 are like terms because they have the same exponent of the same variable.

5y, -13y, 16y, 45y are like terms because they have the same exponent of the same variable.

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