3x+2y=-19 x-12y=19 solve using elimination

Question

whpalmer4 · Answer

@drewsorr1 
They are supposed to use elimination, not substitution.
@kkscout10 
I started explaining the procedure to you when you first posted this.  Why did you close and repost?

cloverracer · Answer

Can you insert this in the equation editor below please? :)

anonymous · Answer

@whpalmer4  You didn't respond

whpalmer4 · Answer

I did.  I asked you to do something.  You didn't do it.

anonymous · Answer

@whpalmer4  Yes I did

whpalmer4 · Answer

Go back and look. http://openstudy.com/users/kkscout10#/updates/534497f6e4b02bb88e659f8d

texaschic101 · Answer

3x + 2y = -19
x - 12y = 19 --->(-3)
--------------
3x + 2y = -19
-3x + 36y = - 57 (result of multiplying by -3)
--------------add
38y = - 76
y = -76/38
y = - 2
now sub -2 in for y in either equation to find x
3x + 2y = -19
3x + 2(-2) = -19
3x - 4 = -19
3x = -19 + 4
3x = - 15
x = -15/3
x = -5

check..
x - 12y = 19
-5 - 12(-2) = 19
-5 + 24 = 19
19 = 19 (correct)

x = -5 and y = -2

texaschic101 · Answer

do you have any questions ?

anonymous · Answer

No thanks I understand now