Posted by **Mary** on Wednesday, April 8, 2009 at 10:48pm.

Solve:

4 + 5x < 29

5x < 4 +29

5x < -4 +29

5x=-25

Solution set is x|x < -5

4x+5y=7

5x-4y=5

The lines are parallel am I right

- math -
**drwls**, Wednesday, April 8, 2009 at 11:18pm
5x < 25; therefore x < 5

Your "solution set" is wrong.

Your last pair of equations seems to go with a different question. The lines are NOT parallel. They are perpendicular.

- math -
**Reiny**, Wednesday, April 8, 2009 at 11:19pm
I believe you asked the same question yesterday, at least the second one is the same.

Don't you go back to see if your questions get answered?

http://www.jiskha.com/display.cgi?id=1239151226

for the first one, from ...

5x < -4 +29

5x < 25

x < 5

so {x│x < 5}

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