(3x7) + (9x-3)

1 answer

First, you need to simplify each respective expression before adding them together.

The first expression is 3x7, which equals 21.

The second expression is 9x-3.

Therefore, the simplified equation becomes 21 + (9x-3).

Now, you can combine like terms by adding the constant terms together.

21 + (-3) equals 18.

Thus, the final answer is 18 + 9x.