Answered

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–5x+2y = -39
-5x+6y = -67
O Add to eliminate x.
Subtract to eliminate x.
Subtract to eliminate y.
0 Add to eliminate y.

Sagot :

njhannans15
The answer is B) subtract to eliminate x.

That would mean the equation is-5x-(-5x) and a double negative equals a double positive and they will end up canceling each other out.

Hope this helps! ;))

Answer:

x=5

y=−3

Step-by-step explanation:

We use the elimination method to solve this system of equations. To eliminate one of the variables, we need to make some changes to the equation so that the variables have the same coefficients but opposite signs

Let's take a look at this system of equations:

​

−4y+11x−67=0

2y+5x−19=0

The coefficient -4 of y in the first equation is exactly -2, times the coefficient 2 of y in the second equation. Therefore, we can multiply the second equation by 2 to eliminate the y.

2⋅2y+2⋅5x−2⋅19=0

4y+10x−38=0

Now we can eliminate y like this:

−4y+11x−67=0

+ 4y+10x−38=0

0+21x−105=0

Solve this final equation to get x = 5 Substitute it into the original one to get y=-3.

The solution to this system of equations is:

 

x=5

y=−3

​

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