Question

Which value of x satisfies both -9x + 4y = 8 and -3x − y = 4?

Answer 1

@marissalovescats

Answer 2

@mathslover @mathmale

Answer 3

Hm I'm not quite sure what you're asking.

But I'm guessing they want you to find the x value of this system of equations?

Answer 4

Yes.

Answer 5

A: -1/7
B: -7/9
C: -4/7
D:-9
E: -4/3

Answer 6

forst
solve the two equations for x
then find y
sub. in any equation to find x

Answer 7

Alrighty

Since they want the x value this means we have to get rid of y. So what we'll do is multiply the 2nd equation by 4 so that the ys will cancel. What will you get if you distribute the 4 in

4(-3x-y=4) ?

Answer 8

-12x-16?

Answer 9

I'm really bad at this.

Answer 10

Close -12x-4x=16

Answer 11

Oh alright

Answer 12

So now we are going to add the equations together (aka combine like terms)