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.
Do you want to know how to do the problem automaticloveletter?
The aim of the game so to speak when using the elimination method is to cancel out one of your variables. In this case we want to eliminate the y variable so we will be focusing on that variable.
Remember when you have an equation like this:|dw:1436827766595:dw|and you subtract five on both sides to solve for y?|dw:1436827785621:dw|
well when you put the opposite of a number underneath the original, it goes away. The y on that side is all alone.
In your equations, we have a 3y in the first equation and then a y underneath it in the second equation. We want to get that y underneath it to be the opposite of the 3y on top. What is the opposite of 3y?
The opposite of 3y is -3y. But we can't just stick a -3 beside the y and call it a day. "What ever you do to one side you have to do to the other". That was a quote by my math teacher that I heard at least a billion times. And it holds relevance to this problem here. To get a -3 next to the y, we have to multiply them together. We can't just multiply those two terms though, we have to multiply the entire bottom equation by -3.
Now, we have to add the two equations together. After you do this, you will get:|dw:1436828310595:dw|
Sure enough, multiplying the entire bottom equation by -3 cancelled out the ys just like we hoped.
Your final answer would be -3. The first person that answered was wrong. I hope you didn't follow his/her answer without testing the work first. I want to be clear: I'm not hating on that person, everyone makes mistakes. :) You just have to be careful. :)