algebra 1
posted by sydney .
How many solutions does this system have2x+y=3 6x=93y
A. one
B. none
C. infinite
D. two
A??

algebra 1 
sydney
answer was c

algebra 1 
Reiny
2x+y=3 > 2x  y = 3
6x=93y
6x + 3y = 9
divide by 3 ,
2x + y = 3
Since the slopes are different, they will intersect.
So ONE solution.
Proof:
http://www.wolframalpha.com/input/?i=plot+2x%2By%3D3+,+6x%3D93y
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