Question

sistemas

-2x-6y=6
x+7y= -3

Com cálculo pf

Answer 1

sistemas

-2x-6y=6
x+7y= -3-->×2



-2x-6y=6
2x+7y= -3
---------------(+)
y= 3


x+7y= -3
x+7*3= -3
x= -3 -21

x= - 24

s ( -24 ,3 )