Question

what is the solution of the system equation?
-2x+y=3
8x-4y=-12

Answer 1

First solve for y in the first equation

Answer 2

Can you do it?

Answer 3

yeah its y=-2x+3

Answer 4

Watch your negative sign

Answer 5

Do you want to use elimination method or substitution method to solve this problem?

Answer 6

substitution

Answer 7

Okay, retry to solve the first equation for y.

Answer 8

idk cause thats how i thought u do it

Answer 9

-2x + y = 3
+2x -2x + y = 3 + 2x
y = 3 + 2x

Answer 10

are u sure??

Answer 11

You have to reverse the sign

Answer 12

yes

Answer 13

okay nvm i see how u did it

Answer 14

now we will substitute this into the second equation

Answer 15

8x - 4(3 + 2x) = -12

Answer 16

ok

Answer 17

can you solve for x by yourself now?

Answer 18

i got 0

Answer 19

There is something wrong. Double check your problem and make sure you typed the original correctly

8x - 12 - 8x = -12
0=0

The x term drops out completely, this shouldn't happen

Answer 20

yeah i guess so thats why i ased cause i was getting confused

Answer 21

I want to go back to this equation 8x - 12 - 8x = -12

rewritten as 8x - 12 = 8x - 12
lets get rid of the -12

8x = 8x then the 8's
x=x

So we can see that x equals all real numbers

Answer 22

This question is written badly. You are positive this is the correct question?

Answer 23

yes

Answer 24

I'm going to admit that I am confused as to our answer as well. Because x can equal anything which gives us an infinite amount of solutions.

x=y/2 - 3/2
8(y/2 - 3/2) - 4y = -12
4y -12 - 4y = -12

y can be anything as well

I'd say there is any infinite amount of solutions

Answer 25

This is a weird problem. Sry that I couln't help get an exact answer. All of our steps our correct, we didn't make any mistakes