Question

7x - 3y = 4
2x - 4y = 1

The solution to the system of equations is _____?

Answer 1

Well first make one variable cancel out you can do this by multiplying the top by -2 and bottom by 7 for x's to cancel OR multiplying top by 4 and bottom by -3 to make y's cancel out.

Answer 2

So if I multiplied -2 to the top one I would have -14x+6y=-8?

Answer 3

yes and the bottom youd get 14x-28y=7 if you multipled by 7 and the x's cancel out and your left with -22y=-1 and if you divide by -22 you get y=1/22

Answer 4

Okay.