Question

Solve 2x + 5y = –13
3x – 4y = –8

(4, 1)

(–4, 1)

(4, –1)

(–4, –1)

Answer 1

@precal

Answer 2

just plug in each value until both are true
recall (x,y)
example (4,1) means x=4 and y=1 just sub into both equations, if it is true then that is the solution

Answer 3

Systems of equations are 2 lines that might cross.
That cross point is a solution.
In this case, you have 2 equations (lines) that are crossing at one point. You are being asked to find the point of intersection.

Answer 4

@precal I Got B.

Answer 5

set them equal to each other

Answer 6

@callie2240 I Got B. Is That Correct?

Answer 7

I have to solve it first to know for sure lol

Answer 8

Multiply equation 1 by 3 and you get

6x + 15y = -39

Multiply equation 2 by 2 and you get

6x - 8y = -16

Subtract the second from the first ....

23y = -23

Therefore y = -1

Substitute y=-1 into 2x + 5y = -13 and we get

2x - 5 = -13 so 2x = -8 so x = -4

So the answer is (-4, -1)
so no, the answer is d understand?