Posted by **Debbie** on Friday, January 13, 2012 at 1:47pm.

Solve by substitution

2x+3y=40.50

3x+y=38.00

- Algebra 1 -
**Anonymous**, Friday, January 13, 2012 at 2:22pm
Use the process of elimation and elimate the x varible. This gives you the y variable. Then you substitue this answer for the x varible. If you need any help with the process of elimantion, I could asist you more.

- Algebra 1 -
**Steve**, Friday, January 13, 2012 at 2:46pm
However, using substitution,

pick either equation and solve for a variable:

3x+y = 38.0

so,

y = 38-3x

Now substitute that value into the other equation:

2x+3y=40.50

2x + 3(38-3x) = 40.5

2x + 114 - 9x = 40.5

-7x = -73.5

x = 10.5

y = 38-3x = 6.5

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