Question

-6x+2y=38
6x-8y=-44
for my answer i got x=1 and y =19 its says its wrong help??

Answer 1

For this one...I would use the OTHER method I didn't use before...elimination

This is where you combine the 2 equations *add them* and eliminate 1 variable

-6x+2y=38
6x-8y=-44

So when we add these 2 equations...we get

-6x + 6x = 0 *cancels out the 'x'

2y + -8y = -6y

38 + -44 = -6

so we have

-6y = -6
---------
-6 -6

y = 1

And now just plug that in for 'y' in one of your equations...lets choose the first one

-6x+2y=38

becomes

-6x+2(1)=38

-6x + 2 = 38

subtract 2 from both sides

-6x = 36

Divide both sides by -6

x = -6

Answer 2

My mistake, y= 1 x= -6 as above

Answer 3

Now we can even check this

Take the fact that y = 1 and x = -6.....and plug them into both equations

-6x+2y=38
6x-8y=-44

Becomes

-6(-6)+2(1)=38

36 + 2 = 38

38 = 38

This ones correct

now for the 2nd one

6(-6)-8(1)=-44

-36 - 8 = -44

-44 = -44

Correct again...so those are your correct answers

Answer 4

o gezz thanks darlin again :)

Answer 5

Lol but again...did it make sense?

You can really choose which method, *substitution or elimination* you want to use

Answer 6

i get the checking one but no the whole how u got there whole thing