`5*[3*(-90)-45]+5 =5*[-270-45]+5 =5*(-315)+5 =-1575+5 =-1570`

When computing the above expression we need is to take into account the order of operations unless otherwise specified by the presence of pharantesis. As a general rule, in the same brackets, multiplication (and division) is done first then addition and substraction.

Thus first step is to compute the value of the expression into the square bracket `[3*(-90)-45]`

by computing the result of multiplication: `3*(-90) =-270`

and then the result of substraction: `-270-45 =-315`

Finally, to arrive at the result, we evaluate again first the result of mutiplication of the value of the square bracket `(-315)` with `5` :

`5*(-315) =-1575`

and then we add `5` :

`-1575+5 =-1570`

**Therefore the answer is `5[3*(-90)-45]+5 =-1570` **

**Question:-**

**5[3(-90)-45]+5**

**SOLUTION:-**

In order to solve this question we will follow the order of PEMDAS which is,

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

*OR*

We will follow the order of BODMAS, which is;

**B**racket **O**pening with

**D**ivision

**M**ultiplication

**A**ddition and

**S***ubtraction*

*Now returning to the problem*;

5[3(-90)-45]+5

5 [3 (-90) -45] + 5

According to the order of operations, we will open the round brackets;

5 [-270 - 45] + 5

Now solve inside the square brackets;

5 [-315] + 5

Now open the square brackets and for that we will multiply 5 with the value inside the bracket;

-1575 + 5

-1570

Hence Solved! The Answer is -1570.

5 [ 3 ( -90 ) - 45 ] + 5

**-1570 Answer.**

5[3(-90)-45]+5

multiply -90 by 3 giving you -270

so

5[-270-45]+5

simplify

5[-315]+5

multiply by 5

then add 5

= -1570

5[3(-90)-45]+5

To solve this equation, remember to use the order of PEMDAS

**P**arentheses

**E**xponents

**M**ultipication

**D**ivision

**A**ddition

**S**ubtraction

By following PEMDAS do what is inside the parentheses first. Which is multiplying 3 and -90

By doing that the equation should look like

**5 ( -270 - 45 ) + 5** Now subtract what is inside the parenthesis

By subtracting, your equation should look like

**5 ( -315 ) + 5 ** Now multiply 5 and -315

By multiplying, your equation should look like

**-1575 + 5** Lastly, just add

by adding, you should get

**-1570** = your answer

5[3(-90)-45]+5

5(-270-45)+5 multiply

5(-315)+5 subtract 45

-1575+5 multiply by 5

-1570 add 5