Question

how do i solve this by substitution?
3x + 5y = 38
4x − 2y = 16

Answer 1

im a little confused

Answer 2

you can play around with the second equation.
4x - 2y = 16

subtract 4x from both sides
- 2y = 16 - 4x

divide both sides by -2
y = -8 + 2x

or, you can re-write it as
y = 2x - 8

Answer 3

you can substitute `2x - 8` instead of y, into the first equation.

equation,
3x+5y=38

substitution,
3x+5(2x-8)=38

and etc....

Answer 4

so the answer is x=6,y=-4?

Answer 5

x = −4, y = 6
x = 4, y = 6
x = 6, y = −4
x = 6, y = 4

Answer 6

no

Answer 7

please show your work. it really seems as though you are guessing.