Question

Simplify the following expression: (x - 8y) - (2x - 4y). If the final answer is written in the form Ax + By, what is the value of B?

Answer 1

x - 8y - (2x - 4y) =
x - 8y -2x + 4y =
-1x - 4y........B = -4

Answer 2

Explanation:

The given expression is:

`(x-8y)-(2x-4y)`

Simplifying the above given expression, we get

`x-8y-2x-4y`

`x-2x-8y+4y`

`-x-4y`

which is the required simplified form.

Now, comparing the above simplified form of the expression with
`Ax+By`, we get

`A=-1` and
`B=-4`

Therefore, the value of B is
`-4`.