**Answers:**

First factor the 3 to get

19x+30-3x

Then combine like terms to get

16x + 30

Like Terms are terms with the same variable, so as in the above example 19x and 3x are like terms because they both have x in them. However x and x^2 are not like terms because one is x and the other is x squared, instead of just x.

Hope this helps.

16x+30

19X+30-3x

16x+30

You have 19x

Now multiply (10-x) by 3

You get 30-3x

put them together and you get:

19x+30-3x

You take 19x-3x and you get 16x (they are like terms because they both contain x's)

So, the final answer issss:

16x+30

:)

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