SOLUTION: I'm suppose to solve the system of equation by using the addition method:
x-y =-9
x+3 = 15
I know the answer is (-3,6) but I dont know HOW they got the answer.
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-> SOLUTION: I'm suppose to solve the system of equation by using the addition method:
x-y =-9
x+3 = 15
I know the answer is (-3,6) but I dont know HOW they got the answer.
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Question 632724: I'm suppose to solve the system of equation by using the addition method:
x-y =-9
x+3 = 15
I know the answer is (-3,6) but I dont know HOW they got the answer. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! x-y =-9
x+3 = 15
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I think you mean
x- y =-9
x+3y = 15
-------------- Subtract
-4y = -24
y = 6
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Sub for y in either eqn, find x
