Question

Solve the following system by solving one of the equations for x or y and then using the substitution method.
5x+y=4
x-3y=4
@geerky42

Answer 1

These questions are so funnnnnnnn

Answer 2

Glad YOU think so lol you can help me do them then lol

Answer 3

Wish it wasn't so late in the night, where I'm too lazy, but I really want to do this. SO, just isolate x in the second equation since it seems easier, or quicker.

Answer 4

x=3y+4

Answer 5

Now take that and substitute it into the first equation, do you know what I mean?

Answer 6

yes!

Answer 7

5(3y+4)=4

Answer 8

You missed something, do you know what?

Answer 9

+y

Answer 10

:D

Answer 11

Now, rewrite it again ^.^

Answer 12

Thank you cuz that just eff'ed up my whole answer! lmaoo
5(3y+4)+y=4
15y+20+y=4
15y+y=-16
16y=-16
y=-1?

Answer 13

yay now sub that in one of the equations and solve for x

Answer 14

Then you'll have x and y, and you'll be done :D

Answer 15

x-3(-1)=4
Will the 3 turn positive?

Answer 16

yup

Answer 17

x=1!
1 & -1

Answer 18

Yay, pretty simple right?

Answer 19

ehhh, sometimes lol