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Llana [10]
3 years ago
12

What is the solution to the system of equations?

Mathematics
2 answers:
nataly862011 [7]3 years ago
8 0
<h2>Steps:</h2>

So with this system of equations, I will be using the elimination method. With the two equations, add them together and you will get:

2x=6

Since the y-variable has been eliminated, we can solve for x. With this, divide both sides by 2:

x=3

Now that we know the value of x, substitute it into either equation to solve for y:

3+y=2\\y=-1\\\\3-y=4\\-y=1\\y=-1

<h2>Answer:</h2>

<u>In (x,y) form, your answer is (3,-1).</u>

zysi [14]3 years ago
7 0

Answer:

x=3, y=-1

Step-by-step explanation:

x+y = 2  

x -y =4  



I will use elimination to eliminate the variable y.  Add the two equations together.

x+y = 2  

x -y =4  

-------------

2x = 6

Divide each side by 2

2x/2 = 6/2

x = 3

But we still don't know y

x+y =2

Substitute x=3 into the equation

3+y =2

Subtract 3 from each side

3-3 +y =2-3

y =-1

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