romaavs21 romaavs21

01-03-2017
Mathematics

contestada

Which of the following ordered pairs is a solution to the system of linear equations below?
Two x plus y equals two. X minus four y equals ten.

Two, negative two

(1, 0)

Two and four sevenths, negative three and one seventh.

Negative two, six

Respuesta :

Snakeman1937 Snakeman1937

07-03-2017

y=5x-2. Substitute into the second
-3x+6(5x-2)=-12
-3x+30x-12=-12
The -12 cancel
27x=0
x=0
y=-2
check in the second equation
0+6(-2)=-12
(0,-2)

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