# Solve 2+7+4(2-5)?

Feb 14, 2017

$- 3$

#### Explanation:

First you have to solve inside the parenthesis:
$2 - 5 = - 3$

Then you multiply it times $4$:
$4 \left(- 3\right) = - 12$

and substitute

$2 + 7 + \left(- 12\right) = 2 + 7 - 12 = - 3$

*Remember the hierarchy: parentheses, power and sqrt, multiplication and division, sum and subtraction

May 20, 2018

$- 3$

#### Explanation:

Identify the number of terms first and then simplify each term to a single number. These are added or subtracted in the last step.

Within each term, do brackets first, then multiplication and division.

" "color(green)(2) " "color(blue)(+ " "7)" "color(red)(+" "4(2-5))" "larr there are $3$ terms
$\textcolor{w h i t e}{w w w w w w w w w w w w w . w} \textcolor{red}{\downarrow}$
=color(green)(2) " "color(blue)(+ " "7)" "color(red)(+" "4xx(-3))
$\textcolor{w h i t e}{w w w w w w w w w w w . . w} \textcolor{red}{\downarrow}$
=color(green)(2) " "color(blue)(+ " "7)" "color(red)(-" "12)

=9" "color(red)(-" "12)

$= - 3$