10-03-2014
Mathematics

contestada

Solve this system by using substitution:

y=7x-10
y=-3

Respuesta :

deathstrike001 deathstrike001

11-03-2014

lets use substitution
y=7x-10
y=-3

so
-3=7x-10
7=7x
1=x

now lets check
y=7(1)-10
y=-3

therefore both equations have the same value

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