Question

How do you evaluate the expression `(c-a)- b` given that `a=-10`, `b=4`, and `c=1`?

Answer 1

`7`

Explanation:

`"substitute the given values into the expression"`

`rArr(c-a)-b`

`=(color(blue)(1)-color(red)(-10))-color(magenta)(4)`

`["note that "--" is equivalent to" +]`

`=(1+10)-4=11-4=7`