Solve the system by the elimination method.
-2x + y + 6 = 0
2x + y - 8 = 0
When you eliminate x, what is the resulting equation?

2y = 2
2y = -2
y = -2

Question

Solve the system by the elimination method. 
-2x + y + 6 = 0
2x + y - 8 = 0 
When you eliminate x, what is the resulting equation?

2y = 2
2y = -2
y = -2

hartnn · Answer

Add those 2 equations, what do u get?

anonymous · Answer

y+-2

hartnn · Answer

+6-8 = -2

so 2y -2 =0 
or 2y =2 :)

anonymous · Answer

Thank you! can you help me with a few more?

hartnn · Answer

sure :)

anonymous · Answer

Solve the system by the elimination method. Check your work. 
3a + 5b - 7 = 0
a - 2b - 4 = 0

hartnn · Answer

so what have you tried?

did you multiply second equation by 3 ?

anonymous · Answer

I have no idea how to even begin this lol. I just got switched to online and have no one to help me lol

hartnn · Answer

multiply second equation by 3
what do u get?

anonymous · Answer

3a-6b-12=0

hartnn · Answer

yep, now subtract that from the first equation!
and you'll see 'a' getting eliminated :)

anonymous · Answer

I'm confused. These are the multiple choice answers. 
{(96/11, -5/11)}
{(34/11, -5/11)}
{(32/33, 5/11)}