Solve this system of equations using any method.

4x – y = 5
3x + y = 16

(Points : 4)
(3, 7)
(3, 5)
(4, 11)
(4, 4)

Question

Solve this system of equations using any method.

4x – y = 5
3x + y = 16

(Points : 4)
       (3, 7)
       (3, 5)
       (4, 11)
       (4, 4)

radar · Answer

this system is just fine for elimination method.  Eliminate y by adding the two equations and then solve for x from their sum.

radar · Answer

After you get the value of x, let me know and I will help you getting y.

sleepyjess · Answer

@marie123 Do you understand what he is saying?

radar · Answer

4x - y =  5
3x + y = 16           Add these
--------------
7x        = 21        This is the sum, can you solve for x ???

radar · Answer

Good luck with you studies.  work hard, work often, you'll will learn.

anonymous · Answer

it would be the first answer then right?

nnesha · Answer

yesh

nnesha · Answer

if you want to check your answer 
just plug x and y values into the equation if both side equal then   your answer is right
but remember you have to check in both equation

nnesha · Answer

|dw:1419030727102:dw|
both side equal yes now plug that into second equation