SOLUTION: SOLVE THE FOLLOWING SYSTEM (USE THE METHOD YOU PREFER, WHETHER ITS SUBSTITUTION OR ADDITION)
5) y=x+1
y=2x-1
now i understand if i use addition that my one's cancel out..
Algebra ->
Matrices-and-determiminant
-> SOLUTION: SOLVE THE FOLLOWING SYSTEM (USE THE METHOD YOU PREFER, WHETHER ITS SUBSTITUTION OR ADDITION)
5) y=x+1
y=2x-1
now i understand if i use addition that my one's cancel out..
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Question 136788: SOLVE THE FOLLOWING SYSTEM (USE THE METHOD YOU PREFER, WHETHER ITS SUBSTITUTION OR ADDITION)
5) y=x+1
y=2x-1
now i understand if i use addition that my one's cancel out... but does that give me y= 3x or wut? i'm lost... do i need to solve for both?? where do i go from here? please help?
thanks, lj23kfuller@yahoo.com Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! y=x+1
y=2x-1
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Equate the two expressions for y to get:
x+1 = 2x-1
x = 2
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Substitute to solve for "y":
y = 2+1
y = 3
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Solution: (2,3)
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Cheers,
Stan H.
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