Need Help asap!!!!! Select the ordered pair from the choices below that is a solution to the following system of equations:
3x = 2y − 16
4x − y = -13
Need Help!!!!!!

Question

Need Help asap!!!!!   Select the ordered pair from the choices below that is a solution to the following system of equations: 
3x = 2y − 16 
4x − y = -13 
 Need Help!!!!!!

allank · Answer

There are three methods you can use here: substitution, elimination and augmented matrix. Which do you want help with?

ghazi · Answer

multiply second equation by 2 and add it to the first you'll get x and hence y

allank · Answer

@ghazi  has outlined elimination. For substitution, you can make y the subject of the second equation. y=4x+13 then plug that into the first equation to get the value of y.

anonymous · Answer

(-4, 2)
       (-5, 1/2)
       (8, 12)
       (-2, 5)
its one of these :/

ghazi · Answer

solve it first

allank · Answer

Before we tell you the answer, work it out and tell us yours.

anonymous · Answer

-_-

ghazi · Answer

$$3x-2y=-16, (4x-y=-13)*2= 8x-2y=-26$$

ghazi · Answer

now subtract 3x-2y=-16 from 8x-2y=-26 , you'll get x= -2 and y=5