Posted by **shelley** on Sunday, December 20, 2009 at 6:18pm.

I cannot figure this out I keep getting the order pair(1.24,-3.44), but it does not work when I check. Can you help me?

5x+5y=-11

7x-3y=19

The other oneI needed to solve is this Question: 4y+3y<-35

I got -5>-35...is that right?

- Math -
**bobpursley**, Sunday, December 20, 2009 at 6:25pm
the first one does check.

7y<-35

y<-5

- Mathquick??? -
**Sw**, Sunday, December 20, 2009 at 7:03pm
Are you sure that the sigh does not change In the second problem? I thought that when you divide by neg then the signs switch?

My instructor told me that the first one was wrong, so I kept going over it and over it, and she insists that it is wrong, unless she wants me to use fractions, but an answer in a decimal form is still considered an integer right?

- Math -
**Reiny**, Sunday, December 20, 2009 at 7:20pm
I agree with bobpursley, your first equation solution is correct. It should not matter if you answer as a decimal or fraction of the decimal is exact, which it is.

As to your question about reversing the sign for inequations:

Yes, you do reverse the inequality sign if you multiply or divide by a negative, BUT...

you did not divide by a negative, you divided both sides by +7, so it stays the same.

## Answer This Question

## Related Questions

- Algebra - - ok... we keep getting this one wrong: Solve the following equation ...
- MATH PLZ HELP - well i'm stumped. i can't figure out how to solve this. solve ...
- algebra - well i'm stumped. i can't figure out how to solve this. solve for (x,y...
- algebra - - #21 -can you help me solve this equation: 3x^2 (2x - 2) i keep ...
- Chemistry - One other question that I cannot figure out what I'm doing wrong is ...
- math,correction please.. - (x)/(x-2) - (x+1)/(x) = (8)/(x^2-2x) I keep getting x...
- Math - How do I work this out? Corporate bonds issued by Johnson Corporation ...
- college math - solve: (3/x)/1=(7/x-20) i keep getting different answers for this...
- Math - Can someone please help me with this question? I have tried to figure it ...
- math - How do you solve this? 5x- [1.5 -3.6] [0.2 1.3] [-0.3 2.8]= [-5.6 1.7] 5x...

More Related Questions