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Think About the Process If you solve the linear system by adding to eliminate p, which step could you do first? Solve for p and q.
2p +39 = 7
3p + 59 = 10
Which step could you do first?
O A. Multiply the first equation by - 3 and the second equation by - 2.
O B. Multiply the first equation by 3 and the second equation by 2.
O c. Multiply the first equation by - 3 and the second equation by 2.
OD. Multiply the first equation by - 2 and the second equation by 3.
The solution is
(Type an ordered pair.)

Respuesta :

Answer:

(23, -1)

Step-by-step explanation:

I think you meant 2p + 39q = 7 , & 3p + 59q = 10

You would do C first, because that will get rid of the P's.

---> -6p - 117q = -21

---> 6P + 118q = 20

Now we get q=-1

If we plug it into the first equation, we get 2p + 39(-1) = 7

Therefpre, 2p - 39 = 7. This means that 2p = 46.

Therefore, p = 23

(23, -1)

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