SOLUTION: What is the solution to this system of equations? Why did you chose the method you did?
x+y=10
x-y=22
I believe I use the substitution method, but I am not sure.
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-> SOLUTION: What is the solution to this system of equations? Why did you chose the method you did?
x+y=10
x-y=22
I believe I use the substitution method, but I am not sure.
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Question 400917: What is the solution to this system of equations? Why did you chose the method you did?
x+y=10
x-y=22
I believe I use the substitution method, but I am not sure. Answer by richard1234(7193) (Show Source):
You can put this solution on YOUR website! Either method works, but in this case addition is easier. This is because if we add the two equations, the y's cancel out and we get 2x = 32 --> x = 16. Replacing x into either equation we get y = -6.
