Respuesta :

Answer:

x=4

Explanation:

3 ( 4x -7 ) = 27

First you will multiply: 3 times 4x and 3 times -7. This is called distrobution.

Now you have: 12x -21 = 27

You will need to add 21 to -21 and 27. You will do this because the positive will take away the negative, they cancel each other out.

What you have now should look like this: 12x = 48.

Now all you need to do is divide 48 by 12 (48/12) to get x=4.