Asked by jordan

Determine the solution of the following systems of linear equations using elimination.

2x + 3y = 7
x – 2y – 4 = 0
Answered by Steve
rearrange things a bit to get

2x + 3y = 7
x - 2y = 4
Now double the 2nd equation and you have

2x + 3y = 7
2x - 4y = 8

Now subtract and you have

7y = -1

And your way is clear...
Answered by jordan
that isn't correct because you cannot do 7y/7=-1/7 to get a whole number for y.
Answered by Steve
so, who said y is an integer?
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