Question

4x-2y=-2 3x+y=-4
substitution or elimination to solve

Answer 1

You can solve for y in the second equation and then substitute into the first one
to solve for x

Answer 2

elimination of x or y

Answer 3

\[y = -4-3x\] then substitute in the first equation for y

Answer 4

\[4x-2(-4-3x)=-2\]

Answer 5

.

Answer 6

then distribute \[4x+8+6x=-2\]

then combine like terms \[10x+8=-2\]

Answer 7

solve for x \[10x=-10\]

\[x=-1\]

Answer 8

Plug that value into one of your equations and you get \[y = -1\]

Answer 9

mul eq1 by 3 and mul eq2 by 4 then subtract (eq1 -eq2)

Answer 10

That works also

Answer 11

ok Thank you! I'm going to do one on my own to see if I completely understand..

Answer 12

y=2x-7 x+4y=-1
my answer is (3,-1)

Answer 13

Not sure those values are correct try plugging them into the second equation

Answer 14

ok, yes it went in. Thank you

Answer 15

oh you are right so sorry

Answer 16

my mistake very good!

Answer 17

I just hope I remeber when it comes to finals this week! UGH! night thank you