hedaya
hedaya
04-04-2019
Mathematics
contestada
-5x+y=-1 and y-4x=3 solve by substitution
Respuesta :
xAJHx
xAJHx
04-04-2019
Y=5x-1
Substitute this into the other equation in the place of y
5x-1-4x=3
X-1=3
X=4
Substitute this into the original equation
Y=5(4)-1
Y=19
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