Question

Resolver o sistema: 

(-3; 2)

(3; 5)

(2; -4)

(-3; -5)

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Answer 1

Resposta:

4x = - 12

x= -12/4

x=- 3

x-2y=- 7

-3 -2y = -7

-2y=-7+3

-2y =- 4(-1)

2y= +4

y=4/2

y=2

(-3,2)