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View Full Version : Solving systems of equations by elimination

Victoria223
Dec 11, 2011, 12:54 PM
-x-7y=14
-4x-14y=28
Aurora2000
Dec 12, 2011, 02:13 AM
-x-7y=14, -4x-14y=28

Multiply by 2 both sides of -x-7y=14, so you get -2x-14y=28 . Then subtract side by side this with -4x-14y=28 so you get 2x=0 which leads to x=0 ,
and y=-2 follows.
vannabannabear
Dec 18, 2011, 05:10 PM
Mathway.com !(: