# Thread: A little help with Operation with integers!

1. ## A little help with Operation with integers!

hi can any one explain and throw some light on this step by step?

5(-4)-[3(-6)+(-3)-4(2(-4)-7)]+3(-8)=?
can you explain it with steps plz.

thank you

2. ## Bumppppp

Please help me i have a quiz.

3. Originally Posted by sunnikid
hi can any one explain and throw some light on this step by step?

5(-4)-[3(-6)+(-3)-4(2(-4)-7)]+3(-8)=?
can you explain it with steps plz.

thank you
Have you heard of PEMDAS?

4. ## u mean?

u mean Bedmas

Brackets,
exponents,
division,
multiply,
add,
subtract??

5. Originally Posted by sunnikid
u mean Bedmas

Brackets,
exponents,
division,
multiply,
add,
subtract??
Yeah, pretty much. So, in this problem, what's the first thing that you're gonna do? addiotion? multiplication? what?

6. ## i think

brackets..

can u explain it plz? like solve step by step?

7. Originally Posted by sunnikid
brackets..
Absolutely right.

Originally Posted by sunnikid
can u explain it plz? like solve step by step?
That's what we're gonna do.

Now, let's look. We've got some braces, followed by some brackets with some parentheses inside of them. So, we always start with the innermost parenthesis, then work our way out.

$\displaystyle \{3(-6)+(-3)-4[2(-4)-7]\}$

So, we begin by focusin on

$\displaystyle [2(-4)-7]$

What do we need to do here?

8. Originally Posted by vonnemo19
absolutely right.

That's what we're gonna do.

Now, let's look. We've got some braces, followed by some brackets with some parentheses inside of them. So, we always start with the innermost parenthesis, then work our way out.

$\displaystyle \{3(-6)+(-3)-4[2(-4)-7]\}$

so, we begin by focusin on

$\displaystyle [2(-4)-7]$

what do we need to do here?
-8-7= -15?