SOLUTION: 6x+5y=27
x=78-9y
what is the solution of the system?
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Question 147181: 6x+5y=27
x=78-9y
what is the solution of the system?
Answer by mangopeeler07(462) (Show Source): You can put this solution on YOUR website!
First, since x is given to you, plug that into the first equation. 6x+5y=27
x=78-9y. It should look like this: . Then distribute on the left side. You should get . Add like terms and get . Next, you should subtract 468 from each side to get the y all alone on one side. Remember, variables are outcasts, nobody likes them and they only hang out with their own kind. That being said, you shouldn't stop there. get -49 away from that weirdo y too! You should end up with . Now that you have y, you can plug in 9 for y in the second equation (where you are given x). Get . Therefore x=-3 and y=9. Wanna check? Put both values back into the original equation 6x+5y=27. Did you get ? It's true!
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