anonymous
  • anonymous
What is the value of the x variable in the solution to the following system of equations? 2x + 2y = 6 x + 3y = −1 a. −2 b. 2 c. 5 d. −5
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Can someone please walk me through how to do this
SolomonZelman
  • SolomonZelman
first equation times 3 and second equation times -2 (2x + 2y = 6) × 3 (x + 3y = −1) × (-2) this will get you a new (but equivalent to the previous) system of equations. 6x + 6y = 18 -2x - 6y = 2 now add the equations and solve for x
anonymous
  • anonymous
So you just take one of the equations and multiply it to the other equation?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

triciaal
  • triciaal
first equation divide each term by 2
anonymous
  • anonymous
Would it be x+y=6 then?
SolomonZelman
  • SolomonZelman
I didnàt multiply equation times equation, all I did is that I multiplied each term in the equation times some number.... i did this for both of the equations, and choose the numbers by which to multiply in a way that would eliminate the y (since the variable you need is x).
anonymous
  • anonymous
So you would come up with 6x+6y= 18? for the first equation and -2x+-6=2?
SolomonZelman
  • SolomonZelman
-2x - 6y = 2 for the second equation, you meant (right ?)
anonymous
  • anonymous
Sorry yes thats what I meant
SolomonZelman
  • SolomonZelman
yes, that is what you inded come up with.
SolomonZelman
  • SolomonZelman
itàs ok...)
SolomonZelman
  • SolomonZelman
Now, add the equations
SolomonZelman
  • SolomonZelman
6x + 6y = 18 -2x - 6y = 2
anonymous
  • anonymous
Okay so it would be 4x + 18y = 20?
anonymous
  • anonymous
Oh wait 12y*
SolomonZelman
  • SolomonZelman
18y?
SolomonZelman
  • SolomonZelman
no, not 12. when you add 6 and -6 you get 6+(-6)=6-6=0 and so when you add 6y and -6y you get (6y)+(-6y)=??
anonymous
  • anonymous
Oh so it would be 4x = 20?
SolomonZelman
  • SolomonZelman
so x is?
anonymous
  • anonymous
5?
SolomonZelman
  • SolomonZelman
yes, that is correct!
anonymous
  • anonymous
Thank you so much! That makes a lot more sense now!
SolomonZelman
  • SolomonZelman
very nice to hear that... you are welcome!
triciaal
  • triciaal
|dw:1439481250954:dw|

Looking for something else?

Not the answer you are looking for? Search for more explanations.