Question

3x + 4y = 23
2x - 4y = 2
Using method of elimination

Answer 1

X=5, Y=2.

Add the top and bottom equation together:

(3x + 2x = 5x, 4y-4y=0, 23+2=25),

to get 5x = 25, divide by 5 to get x=5.

Then, pick any equation to plug x=5 into to solve for y. I'll do the first one.

3(5) + 4y = 23.

15 + 4y = 23

4y = 8

y = 2