Question

The value of x is negative. What must be true about 10-x? Explain.

Answer 1

The answer must be positive. Let's say that X = -10.

10-(-10)

The negatives cancel leaving us with a positive number. Thus every number that X can be will result in a positive answer.

Answer 2

the value of x makes the value of the expression positive.

Explanation:

The value of x is negative.

`10-x`

For example lets take x= -5

Plug in -5 for x in
`10-x`

`10-(-5)`, negative times negative becomes positive

`10+5=15`

When the value of x is negative then the value of the expression becomes positive.