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Please help due tomorrow

Please help due tomorrow-example-1
User Erykah
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2 Answers

9 votes
x=-3 and y=-1
Solved by substitution method:
Please help due tomorrow-example-1
User Ramtin Soltani
by
4.7k points
8 votes

Answer:

We need to solve this system of equations by substitution:

-6x-2y =20

3y=x

Yu can do it with the letter you decide

You can get the x from the second equation and replace in the first:

3y = x

-6x - 2y = 20 -> -6(3y) - 2y = 20 --> -18y - 2y = 20 --> y=-1

Then we can replace in the second one:

3*(-1) = x ---> -3 = x

So the answer is x = -3, y = -1

User Pax
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4.9k points