What is the value of the y variable in the solution to the following system of equations?
5x + 4y = 1
4x + 3y = -1

Question

What is the value of the y variable in the solution to the following system of equations?
5x + 4y = 1
4x + 3y = -1

anonymous · Answer

Can some one explain how do do this??

zepdrix · Answer

Hmm that's a weird way to approach it Hero :D lol

Thatgirl, have you learned the method of `substitution`, or maybe the `elimination` method? :)

Either method would be quite handy for solving this.

anonymous · Answer

@ZeHanz Can you help me?!?!

anonymous · Answer

How can i do this with substitution?

zehanz · Answer

Multiply first eq. with 3, call it (3)
Multiply second one with 4, call it (4)
Subtract: (3) - (4).

If you didn't make an error, you've got an equation with only x in it.
Solve it. Then put the result in any other equation with y in it, to get y.

zehanz · Answer

@thatgirl666: sorry, I did it with elimination...

anonymous · Answer

I have another question @Hero

anonymous · Answer

okay