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March 4, 2015

March 4, 2015

Posted by **Miranda** on Thursday, January 10, 2013 at 11:04pm.

3. Solve the system using any method – graphing, substitution, or linear combination. Make sure to show your work.

2x + 5y= 8

x + 3y= 2

- Algebra 1 -
**Reiny**, Thursday, January 10, 2013 at 11:09pmWhenever you have a variable showing up as an x or y with coefficient of 1 understood, I use substitution

from the 2nd , x = 2 - 3y, now plug into the 1st

2(2-3y) + 5y = 8

4 - 6y + 5y = 8

-y = 4

y = -4

then x = 2 -3(-4) =14

x= 14 , y = -4

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