Posted by sherri r on Monday, January 19, 2009 at 6:50pm.
correct the typo in 7x3y=-2
type each equation in a new line, so we tell where one ends and the next one begins.
7x3y=-2
-7x7x=14
7x3y=-2
-7x7x=14
this is worse than before, now I have to read it as
21xy = -2
-49x^2 = 14
it can't be that, since the second equation clearly has no real solution.
I have a feeling you meant to type
7x + 3y = -2
-7x + 7y = 14
but until you clarify the equation, there is no point in working it out.
7x + 3y = -2
-7x + 7y = 14
7x + 3y = -2
-7x + 7y = 14
7x + 3y = -2
-7x + 7y = 14
7x + 3y = -2
-7x + 7y = 14
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