Question

Solve the system of equations for y.
-3x-2y=-16
4x+3y=23

Answer 1

which equation do you want to set equal to y?

Answer 2

either one. I've been stuck on this problem for the longest!

Answer 3

lets do the top one.
-3x-2y=-16
-2y=-3x-16
y=3/2x+8

Answer 4

now that you know what y is, plug it in 4x+3y=23

Answer 5

wouldn't you be adding -2y to both sides? why is it still -2y?

Answer 6

-3x-2y=-16
4x+3y=23

1st: Add both equations together to get:

x + y = 7

Answer 7

2nd - Isolate x:

x = 7 - y

3rd - substitute the expression for x into one of the original equations
4th - Solve for y

Answer 8

thank you both!

Answer 9

Did you figure it out yet? What's the value of y?

Answer 10

positive 5

Answer 11

-3(7-y)-2y=-16
-21 + 3y - 2y = -16
-21 + y = -16
y = -16 + 21
y = 5

Correct

Answer 12

thanks :)

Answer 13

yw