Question

MEDAL AND FAN!!
Solve the system of equations.

5x + y = 9
3x + 2y = 4

(-2, 5)
(1, 4)
(2, -1)
(4, -4)

Answer 1

@kropot72 @KamiBug @Atschanz @ashhhrodriguez @ameenbriscoe13 @Crissy15 @brainbuzzed5646

Answer 2

5x + y = 9 ............(1)
3x + 2y = 4 ..........(2)
If you subtract 5x from both sides of equation (1), you can find y in terms of x as follows:
5x - 5x + y = y = 9 - 5x
So we have:
y = 9 - 5x ...........(3)
Now you need to plug the expression for y in (3) into equation (2) and then solve to find the value of x.

Answer 3

Anyone??

Answer 4

the answer is the (-2,5)

Answer 5

@knightmare6 Can you follow what I posted?

Answer 6

Oh okay i got it

Answer 7

So, plugging in the expression for y we get:
3x + 18 -10x = 4 .........(4)
Can you solve (4) to find the value of x?

Answer 8

I know the answer i need help on my other question i got (-2,5)

Answer 9

what the there question

Answer 10

That is not the correct choice.

Answer 11

What do you mean then solve for (4) plug 4 in for x?

Answer 12

3x + 18 -10x = 4 .........(4)
You need to solve equation (4) to find the value of x.
The first step in solving (4) is to combine like terms. 3x - 10x = -7x. So now we have:
-7x + 18 = 4 ..............(5)
Now you need to subtract 18 from both sides of equation (5). Can you do that?

Answer 13

-7x=-14

Answer 14

Good work!
-7x=-14 .......(6)
Now divide both sides of (6) by -7.

Answer 15

2

Answer 16

so its (2,-1)

Answer 17

You have the correct choice. Well done!

Answer 18

can you help me on my other question i tagged you in?

Answer 19

Sorry, I must log out now.