3 years ago

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

Mathematics

1 answer:

jeyben [28]3 years ago

6 0

Answer:

X=-1, y=4

Step-by-step explanation:

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

by using eliminating property

$3y = 12 \\ y = \frac{12}{3} = 4$

by substitution

X=-1

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