Question

Simplify -2[9-(x+7)]

Answer 1

Simplify the expression.

2 x − 4

Answer 2

`\bold{-2[9-(x+7)] = -4+2x}`

Solution:

Given, -2[9-(x+7)]

According to the BODMAS rule,

Multiplying the sign inside the brackets we get,

`\Rightarrow -2[9-x-7]`

On subtracting 9 from 7 we get,

`\Rightarrow -2[2-x]`

On multiplying (-2) inside the brackets,

`\Rightarrow -2*2-(-2* x)` (distributive property)

`\Rightarrow (-4+2* x)`

`\Rightarrow (-4+2x)`