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16-04-2015
Mathematics

contestada

Solve the system by substitution
y=3x+3
y=2x

Respuesta :

17-04-2015

{y=3x+3
{y=2x

⇒3x+3=2x /-2x

x+3=0 /-3

x=-3

y=2x= 2* (-3)=-6

y=-6

Solution: (-3; -6)

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