Question

x-2y=-6
4x+6y=4

Answer 1

multiply 1st eq with 3

Answer 2

wait what?

Answer 3

Yes
to get y value equal with 2nd eq

Answer 4

3x-6y=-18
4x+6y=4
======
7x=-14
x=-14/7
x=-2

Answer 5

where did you get 3x?

Answer 6

we multiply the whole first eq with 3

Answer 7

Where did you get the three at?

Answer 8

Ah we have to make y values of both eq same with different signs so yeah...3 x -2 =-6

Answer 9

OK! So I have to solve the first equation
x-2y=-6 first!

Answer 10

Thanks uri! (again :P)

Answer 11

yw find y now

Answer 12

OK x=-2
using
3x-6y=-18
3(-2)-6y=-18
-6-6y=-18
-6+-6-6y=-18+-6
-6y=-24
-24/-6=
y=4

Answer 13

wait that doesn't look right

Answer 14

No use the original 2nd eq

Answer 15

OK so
4(-2)+6y=4
-8x+6y=4

Answer 16

I'm solving for y so I put 0 in the place of 6
-8x=4
-8x=4

Answer 17

-8/4=
-2

Answer 18

y=-2

Answer 19

wait -8x=4 isn't -8/4
it's 4/-8
-.5

Answer 20

NO! crazy liner equations >.<

Answer 21

4x+6y=-6
x=-2
4(-2)-2y=-6
-8x-2y=-6

Answer 22

wait i mean -8x-2y=-4

Answer 23

typo -8x-2y=4

Answer 24

am I right so far?

Answer 25

here is an alternative method
\[x-2y=-6\\ 4x+6y=4 \]
the first equation is the same as
\[x=2y-6\] so you can replace \(x\) in the second equation by \(2y-6\) with careful use of parentheses and solve
\[4(2y-6)+6y=4\] for \(y\)

Answer 26

Thanks @satellite73!