Question

Please help me thanks!

Answer 1

I believe the answer is D. 36 , sorry if I'm wrong !

Answer 2

The problem gives you the value of 3x + y.

In the expression, there is 9x + 3 y.

By using the distributive property, we know that 9x + 3y is 3 times greater than 3x + y.

3(3x + y) = 9x + y

Since 3x + y = 21, then we can say:

3(21) = 9x + y

63 = 9x + y

Now that we know the value of 9x + y, we can divide it by the 9 seen in the picture.

63/9 = 7

Therefore, the answer is A.