Question

What is the solution to the system of equations?

y = –3x – 2

5x + 2y = 15

(–40, 19)
(–19, 55)
(19, –40)
(55, –19)

Answer 1

Have you tried solving?

Answer 2

This one is simple as well. You plug in the first equation into the second equation. Like this
5x + 2y = 15
5x + 2( –3x – 2 )= 15

Answer 3

Then you can solve to get x

Answer 4

distribute?

Answer 5

5x + 2( –3x – 2 )= 15
5x-6x-4=15
-x-4=15
-x=19
x=-19

Answer 6

Yes! and the only answer as -19 as the x value is B

Answer 7

so b is the obvious answer?

Answer 8

Yes

Answer 9

One way this makes it easier is by going on www.desmos.com then putting in both equations and finding out where the intersection point is (that's the solution)

Answer 10

its blocked for me

Answer 11

Oh dang. I can keep helping you though!!

Answer 12

okay thanks, i appreciate it