Question

please help me with this because i dont get it at all

Answer 1

Answer:

you should download doubtbut or snapsolve they are also amazing like brainly

Answer 2

The correct answer is 9x-7 = 20

Because if you put x=3 in it, then it gives:

9×3 - 7 = 27 - 7= 20.

Hope it helps!