see attachment to save my life....

Printable View

- May 3rd 2007, 11:54 PMjeilynnsolve equation
see attachment to save my life....

- May 4th 2007, 12:06 AMearboth
Hello, jeilynn,

I would choose B because

- you can easily solve the second equation for x: The coefficient of x is (+1)

- you can substitute the term for x in the first equation

5x + 3 y = 3

x + 9y = 2 ==> x =**2 - 9y**

5(**2-9y**) + 3y = 3

10 - 45y + 3y = 3

-42y = -7

**y = 1/6**Now substitute this result into the equation which expresses x:

**x**= 2 - 9*(1/6) = 2 - 3/2 =**1/2**