Question

-3x + 7y = -16
-9x + 5y = 16

Create an equivalent system of equations by replacing one equation with the sum of that equation and a multiple of the other. Show the steps to do this.

Answer 1

Somebody PLEASE help me!! I really need help on this. PLEASE!!! I will give you a medal and fan you and recommend you to anybody who needs help, if you will please just help me.

Answer 2

So substitution..?

Answer 3

What?? I have to make another equation that has the same solution as those but be a different equation.

Answer 4

Oh, @dan815 you're up bro

Answer 5

@GirlByte I have heard you are good at math, can you help me?

Answer 6

@dan815 can you help me?

Answer 7

ok

Answer 8

Thanks

Answer 9

what is the solution of hte first equation

Answer 10

of the first 2 equations

Answer 11

(-4, -4)

Answer 12

ok now work backwards

Answer 13

just set up 2 random equations like
5x+6y = d
and see what d will be when u pop up -4,4 thats 1 equations now just make another random equation

Answer 14

when u pop in*

Answer 15

You can't do that though because you have to add the first equation and a multiple of the second equation

Answer 16

but they have to have the same solution

Answer 17

@dan815 Hello? I am not done yet, what you told me to do I can not do