u have to use PEMDAS 4 these types of questions. but 4 brackets and parentheses and braces it is kind of the same. u dot the parentheses first then the brackets then the braces ({ )
so here is how u do it:
2[9-(3x2)] like i said, u hav 2 do parentheses first
2[9-6] once u do the stuff in side the parentheses u get rid of the parentheses
2x3 then, like i said, u do the brackets which happens 2 b 6 bcuz 9-3=6 and 2 numbers 2gether means multiply
6! 2x3=6
p.s. U DO THE PARENTHSES FIRST.......NOT BRACKETS!!!
break it up into chunks. this may be confusing at first but hopefully this helps.
ill break it step by step so you can see what i am trying to do
The parentheses are there to guide you what calculations you should do first...you have to calculate the numbers inside the () first
you have 2 sets of parentheses
one being (9- (3x2)) 9 minus the product of (3x2)
the second being (3x2)
when have parentheses inside of parentheses a good rule of thumb is to always calculate the inner most parentheses then work out ward...so in this case we first calculate
(3x2) which'll give you 6
so now the equation 2 ( 9 - (3x2)) will be 2 ( 9 - 6)
now you can work the second set of parentheses which is (9-6) which'll give you 3
so the equation went from
= 2 (9 - (3x2))
= 2(9- (6))
= 2(3)
= 6
just remember [ ] is the same as () they look different so they dont confuse you
try this 5 (10 -(15 - (5x2)))
you have three sets of parentheses, work the inner most first then work outwards...hope this helps
2[9-(3x2)]=2[9-6] (first you simplify the inner most bracket)
=2x3 (remove the brackets and simplify)
=6
Brackets are meant just for simplification
Here we have the apply the BODMAS the explanation is
B- BRACKETS
O- OF
D- DIVISION
M- MULTIPLICATION
A- ADDITION
S- SUBTRACTION
According to the above order we can simplify the above sum easily