Y=_x+4 x + 2y = 8 How many solutions dose this linear system have

asked Apr 10, 2020 128k views

3 votes

Y=_x+4
x + 2y =
8
How many solutions dose this linear system have

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4 votes

Answer:

X=-1, y=4

Explanation:

$y = x + 4 \\ x + 2y = 8 \\ = = = = = = = = = = = = \\ y - x = 4 \\ x + 2y = 8$

by using eliminating property

$3y = 12 \\ y = (12)/(3) = 4$

by substitution

X=-1

Rod Kimble answered Apr 15, 2020

8.0k points

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