SOLUTION: the problem is pretty simple, but i dont believe i am doing it correctly. it is substitution method:
y-2x=9
y-7x=8
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-> SOLUTION: the problem is pretty simple, but i dont believe i am doing it correctly. it is substitution method:
y-2x=9
y-7x=8
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Question 665715: the problem is pretty simple, but i dont believe i am doing it correctly. it is substitution method:
y-2x=9
y-7x=8 Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! y-2x=9
y-7x=8
y=7x+8
substitute y in first equation
7x+8-2x=9
5x+8=9
5x+8-8=9-8
5x=1
x=1/5
plug x in any equation
y=7x+8
y=7*(1/5)+8
y=(7/5)+8
y=47/5
