Respuesta :

Answer:

If it wants you simplify the answer 6x + 21

Step-by-step explanation:

4x times 2x = 8x. Then 4x times 3 = 12x

Then 8x + 12x = 20x

-7 times 2x = -14x. Then -7 times -3 = 21

20x - 14x = 6x + 21

I hope that helped! :)