11-11-2018
Mathematics

contestada

if 3x+2y=14 and 2x+y=7, then x+y=

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MargauxStrb MargauxStrb

11-11-2018

Out of the second equation y=7-2x
Into the first equation
3x+14-4x=14
14-x=14
X=0

Now fill back into the second
Y=7
So x+y is 7

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