Simplify an expression ?? Not sure how to solve this problem please help

RDR1111

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Feb 13, 2020
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I’m really trying to understand “how” to figure this out and it’s so confusing I won’t learn how if I just use a calculator or look up the answer on google i was racking my brain for hours last night and my girlfriend suggested I ask for help online et voila here I am please help anyone out there this is so important to me I need to get my degree even just to get a job as an usher haha and I’m late in the game but I’m trying not to fail

Thanks

Here’s the equation

simplify

5t - {7t -[5r - 2(t - 8)] + 6r} - 5r = ____

Thank you out there!!

Joe
 

Jomo

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Hi. Can we please see your work so that a helper will know exactly what you need help with? A helper will also point out why your mistakes are wrong.
I would first try to figure out what is inside [ ]. Then subtract that from 7r and then add 6r. At that point you would have what is in { }.
I would the compute 5t - { } and then subtract 5r from that.
Give it a try and post your work.
 

pka

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Jan 29, 2005
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\(5t - \{7t -[5r - 2(t - 8)] + 6r\} - 5r \)
\(5t - \{7t -[5r - 2t +16] + 6r\} - 5r \)
\(5t - \{7t -5r + 2t -16 + 6r\} - 5r \)
\(5t - 7t +5r - 2t +16 - 6r - 5r \)
-6r-4t+16
-2(3r+2t-8) SEE HERE
 

Subhotosh Khan

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\(5t - \{7t -[5r - 2(t - 8)] + 6r\} - 5r \)
\(5t - \{7t -[5r - 2t +16] + 6r\} - 5r \)
\(5t - \{7t -5r + 2t -16 + 6r\} - 5r \)
\(5t - 7t +5r - 2t +16 - 6r - 5r \)
-6r-4t+16
-2(3r+2t-8) SEE HERE
pka, what happened to "teaching by discovery" method?
 

pka

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pka, what happened to "teaching by discovery" method?
Let me first say that I am the product of six years of intensive teaching using the Moore Method.
I absolutely believe in its use. But I also think it is important to when to use it and when not to.
It is necessary to get the train on the tracks to go anywhere.
 

Subhotosh Khan

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Let me first say that I am the product of six years of intensive teaching using the Moore Method.
I absolutely believe in its use. But I also think it is important to when to use it and when not to.
It is necessary to get the train on the tracks to go anywhere.
Yes - but Jomo provided detailed path to the solution and the OP did not show ANY effort!

Train was only 4 hrs. late ......
 
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