jacksondeloso
Answered

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To use the elimination method, you can add the two equations in a system of equations to eliminate one of the variables.


Add the two equations.


{−9x+y=10
10x−y=−9


What is the resulting equation?



A 0 + 2y = 10 + 2, y = , 1


B x + 0 = 1x, + 0 = 1


C x + 0 = 19x, + 0 = 19


D 19x + 2y = 19

P.S its not C pls help asap

Sagot :

lena3056

Answer:

x=1 y=19

Step-by-step explanation:

Let's solve your system by elimination.

−9x+y=10; 10x−y=−9

−9x+y=10

10x−y=−9

Add these equations to eliminate y:

x=1

Then solve x=1 for x:

x=1

Now that we've found x let's plug it back in to solve for y.

Write down an original equation:

−9x+y=10

Substitute1forxin−9x+y=10:

(−9)(1)+y=10

y−9=10(Simplify both sides of the equation)

y−9+9=10+9(Add 9 to both sides)

y=19

Hope this helps, I don't really get the answer choices though....

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