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Old December 2nd, 2008, 08:28 PM
Rapha Rapha is offline
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Hi

Quote:
Originally Posted by mr.confused View Post
I am not sure how to solve this problem as the setup is different from other problems of this kind I have faced.All I need to know is how to set it up.If you notice the variable x is isolated on the left, usually the constant is in this position and I am not sure how to set this up.

4x= -5y+10
5x= -y-19
Not sure about your question, but one possibility is:


4x= -5y+10
-> x = (-5y+10)/4

use this for your second equation 5x= -y-19

5*[(-5y+10)/4] = -y - 19

(-25y+50)/4 = -y - 19

-25y+50 = -4y - 76

-21y = -126

=> y = (-126)/(-21) = 6

Now you now y, can you find x?

You need to solve 4x= -5*(6)+10 OR 5x= -(6)-19

Remember, (6) is the solution for y. I just wrote 6 instead of y.

Regards
Rapha
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