Question

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

Answer 1

Answer:

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,

$\Rightarrow -2\times2-(-2\times x)$ (distributive property)

$\Rightarrow (-4+2\times x)$

$\Rightarrow (-4+2x)$