(50 Points)

Mathematics

2 answers:

Yanka [14]3 years ago

5 0

C
If you plug in the values in that equation, it works.

Assoli18 [71]3 years ago

5 0

To find the other system, since we know already that x = 3 and y = 9, we just have to input the value of x and y in each of the equations and see if they work.

4x + 6y = 64

4 (3) + 6(9) = 64

12 + 54 = 64
66 = 64

That doesn't work, so we move on.

2x + y = 36

2 (3) + 9 = 36

6 + 9 = 36

15 = 36

Once again, we move on.

4x + y = 21

4 (3) + 9 = 21

12 + 9 = 21

21 = 21

Since we're only looking for one answer, we have found it, meaning that the answer to this question is 4x + y = 21.

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