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

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asked Sep 28, 2015 165k views

1 Answer

LTasty · Answer 1 · 2015-10-03T15:24:10+0000

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

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

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