Posted by Carey on Saturday, August 27, 2011 at 3:07pm.
solve by elimination method
3x+4y=4
6x+8y=8

algebra  MathMate, Saturday, August 27, 2011 at 4:31pm
3x+4y=4 ... (1)
6x+8y=8 ... (2)
If we multiply equation (1) by 2 and subtract from equation (2), we get
0 = 0
which means that the two equations represent coincident lines. This results in an infinite number of solutions:
Let y=t,
then
x=(44t)/3
y=t
for any value of t ∈R.
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