Question

Which is the output for the following linear function when the input is

-7?
y-x=2y+1
Options:
6
12
-13
8

Answer 1

y-(-7)=2y+1
y+7-1=2y
6=2y-y
y=6

Answer 2

A) 6

Explanation:

`y-x=2y+1\\y-(-7)=2y+1\\y+7=2y+1\\7=y+1\\6=y`

The output is y=6 when the input is x=-7