2. Simplify the expression - 4 (x - 7) + 3 (x + 9)

You can simplify the expression by doing the distributive law of property.

-4 (x - 7) would become - 4x * 28.

And 3 (x + 9) would become 3x + 9

Because the law of distributive property states that a (b + c) = ab + ac

Now let's put back the expression.

-4x + 28 + 3x + 9

Now, let's combine like terms. 28 and 9 are like terms ...

Let's add them together. 28 + 9 = 37.

-4x + 37 + 3x

And also, - 4x and 3x are like terms. Add them up. - 4x + 3x = - x

Now here's the final expression.

-x + 37

-4x+28+3x+27

-1x+55

you will times - 4 * x then times - 4 times - 7 then add 3 times x then add 3 times 9