Respuesta :

igoroleshko156

Answer:

[tex](1, -2)[/tex]

Step-by-step explanation:

Step 1:  Set the second equation into the first

[tex]x + (-2x) = -1[/tex]

[tex]x - 2x = -1[/tex]

[tex]-x / -1 = -1 / -1[/tex]

[tex]x = 1[/tex]

Step 2:  Solve the second equation

[tex]y = -2(1)[/tex]

[tex]y = -2[/tex]

Answer:  [tex](1, -2)[/tex]

TheNoobXD

Answer:

(1,-2)

Step-by-step explanation:

x+y=-1

y=-2x

substitute the value of y into an equation

x-2x=-1

minus the x and -2x

-1x=-1

divide both sides by -1

x=1

substitute the value of x into an equation

y=-2*1

multiply -2 and 1

y= -2

(1, -2)

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