Answer:
if you have y= 2x, y is in terms of x and you can input different values of x to obtain corresponding values outputs of y.
Answer:
40/100=4/10=2/5 2/5 is the simplest form
The scenario will will be represented by: 
The number will be -13
Step-by-step explanation:
We have to convert the given situation into the mathematical form
Let x be the number
Then
"a number plus itself"
x+x
"plus twice itself"
x+x+2x
"plus 4 times itself"
x+x+2x+4x
"is equal to -104"

This can also be written as:

Keywords: Linear Equation
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