Thursday
March 5, 2015

Homework Help: Algebra1

Posted by Samantha on Sunday, April 18, 2010 at 7:19pm.

I am solving for linear equations and I'm wondering if I did Step 3 right..

3x-y=8
x-y=8

Step 1
3x-y=8
3x-y+y=8+y
3x=8+y
3x/3=8+y/3
x=(8+y/3)

Step 2
3(8+y/3)-y=8
8+y-y=8
8+2y=8
8+2y-8=8-8
2y=0
2y/2=0/2
y=0

Step 3
x=8+y(0)/3
x=2.6

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