sarahlamar382 sarahlamar382

04-12-2014
Mathematics

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4x + y = 24
5x - y = 12
Applying systems of linear equations substitution, elimination.

4x y 24 5x y 12 Applying systems of linear equations substitution elimination class=

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lakwan007 lakwan007

04-12-2014

Using elimination you can eliminate 'y' to find x first.
4x=24
+ 5x=12
-------------
9x=36
9/9 x=36/9
X=4

Next use substitution to plug 4 back in to 'x'

4(4)+y=24
16+y=24
-16 -16
------------
Y=8
X is 4 and Y is 8

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