Question

add. [ +4 ] + [ -9 ]​

Answer 1

The answer is [-5].

Given:

Two numbers are given. These are [+4] and [-9] with positive and negative signs respectively.

To find:

We have to add these two numbers with their proper signs and have to find the final result.

Solution:

To add any two numbers a and b, we write these as a + b .

Here a is [+4] and b is [-9].

So by performing addition , we get,

[+4] + [-9] = [-5]

The final answer is [-5] .

Answer 2

Answer:

The result will be  [ +4 ] + [ -9 ]​ $= -5$

Step-by-step explanation:

As per the data in given equation

In above question it is given that

We have find the value of given expression

Given the data in question  [ +4 ] + [ -9 ]​

BODMAS RULE:- It is a correct order to solve the mathematical expression.

Where,

B stands for bracket

D stands for divide

M stands for multiplication

A stands for addition

S stands for subtraction.

As we get,  

$[+4]+[-9]$

The product of positive sign and multiply with negative sign will make the result negative

Example: (+)(-)=(-)

We get,

$+4-9\\-5$

Hence the result will be  [ +4 ] + [ -9 ]​ $=-5$