Select the ordered pair from the choices below that is a solution to the following system of equations:
9x − 5y = 12
2y + 4 = 6x

(-2,-6)

(2/9, -2)

(3, 5)

(-1/3, -3)

Question

Select the ordered pair from the choices below that is a solution to the following system of equations:
9x − 5y = 12
2y + 4 = 6x

		
(-2,-6)
 		
(2/9, -2)
 		
(3, 5)
 		
(-1/3, -3)

anonymous · Answer

Hey, do you have a graphing caluclator?

anonymous · Answer

no,:(

anonymous · Answer

Ok, go on google and type in free graphing calculator. Graph these two equations and find the point that they intersect. This point is your solution.

anonymous · Answer

-1/3,-3

anonymous · Answer

Do you know how to solve simultaneous equations?
Either use substitution method or elimination.

anonymous · Answer

okay thanks guys(:

anonymous · Answer

Using substitution method,
$$9x-5y=12$$
$$6x-2y=4 $$
So $$2y= 4-2x $$$$y= 2-x$$

$$9x-5(2-x)= 12  $$Solve for x and then y