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so taking the bracket first.. we noticed that there is a parenthesis so we need to compute 0.5-1.4 first
Yes, this is a question of knowing PEDMAS/ BEDMAS, what ever the kids call it these days.
US education system uses PEMDAS but often forget that when there is [ () ] the bracket is taken first into consideration and then do the problem in (I)
I'm just waiting for the OP to respond to what's 0.5-1.4
I don't want to be one of those people with A is the answer or 1239 here's the link to an online calculator.
Yes, I see, you're a good teacher!
thanks :). I caught someone using an algebra calculator and citing it as the source of the answer.
By the way, PEDMAS stands for
P = parenthesis
E = exponents
D = division
M = multiplication
A = addition
S = subtraction
Going in that order for the operation :P, just a little note if OP doesn't know haha.
B -> bracket.
so what is it or r u guys helping me solve it
we're helping you solve it
we consider the bracket first
then since there is a () and P is present we need to solve 0.5-1.4
Sorry to intrude like that Usuki, I will let you continue, good luck :)
so what is 0.5-1.4 ?
now we need to distribute the negative so -0.9 becomes positive
\[-4.5[2x+0.9]\] we can't combine 2x and 0.9 because x is a variable and we have a constant (a number) so we can go ahead and distribute the -4.5 throughout the whole equation
so what is -4.5(2x) same as -4.5 times 2x
and -4.5 x 0.9
you just have to compute -4.5 x 0.9 and -4.5(2x)
and then by doing those computations... this is the answer