Question

3x - y = -4
5x + 4y = -8

Answer 1

What do we have to do ?

Answer 2

find the points that it would be on the graph

Answer 3

Umm it would be on a graph oh darn lol i thought a fraction

Answer 4

Hero will be here to help you

Answer 5

From the first equation y = 3x+4
Replace y in the second equation and solve. Can you do that this time?

Answer 6

And some others that are a bit smart :P

Answer 7

Solve simultaneously
multiply Eq1 by4 and andd to Eq2
to get x

Answer 8

x=-24/17

Answer 9

\[5x+4(3x+4)=-8\]

Answer 10

I have 17x + 16 = -8. What to do after that?

Answer 11

Subtract 16 from both sides.

Answer 12

for x I have -1.41

Answer 13

that it correct but it might be better to leave it in it's exact form which is -24/17

Answer 14

Because now you have to find y which is 3x+4

Answer 15

\[y=3(-\frac{24}{17})+4\]

Answer 16

\[y=\frac{-72}{17}+4\]

Answer 17

\[y=\frac{-72}{17}+\frac{68}{17}=\frac{-4}{17}\]

Answer 18

So the solution is (-24/17,-4/17)

Answer 19

Thanks