keiontaelampkin
keiontaelampkin
07-11-2015
Mathematics
contestada
How to solve 4x-3y=22,2x-y=10
Respuesta :
derrickanthony
derrickanthony
07-11-2015
Is that considered two equations?
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fouad
fouad
07-11-2015
4x-3y=22---->(×1): 4x-3y=22
2x-y=10 ---->(× -2): -4x+2y=-20
_________(+)
0-y=2
y=-2
we replace the value of y in one of the eq
4x-3y=22
4x-3×(-2)=22
4x+6=22
4x=16
x=4
so x=4 and y=-2
Answer Link
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