Question

How do you evaluate `2\times \{ 6+ [ 12\div ( 3+ 1) ] \} - 1`?

Answer 1

First work the parentheses from inside out. After that the multiplication and then the subtraction.

Explanation:

`=2xx{6+[12div4]}-1`
`=2xx{6+3}-1`
`=2xx9-1`
`=18-1`
`=17`