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=(4-4t)/3

y=t

for any value of t ∈R.

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