lostgirl501 lostgirl501

18-12-2018
Mathematics

contestada

x+y=15
4x+4y=10
what is the answer to this using either substitution or elimination?

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laurenbradford laurenbradford

18-12-2018

using substitution :

x=-y+15
plug that into the other equation
4(-y+15)+4y=10
-4y+60+4y=10
-4y and 4y cancel out to her 60=10 which means there is no solution

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