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Mathematics 17 Online
OpenStudy (anonymous):

b+2+5b

OpenStudy (anonymous):

have to simplify and justify

jimthompson5910 (jim_thompson5910):

b+2+5b ... Start with the given expression (b+5b)+2 ... Group like terms 6b+2 ... Combine like terms So b+2+5b simplifies to 6b+2

OpenStudy (anonymous):

how did you get 6b

OpenStudy (anonymous):

you also mixed it up

jimthompson5910 (jim_thompson5910):

b+5b is 6b 5b is basically saying 5 times b 5 times b is the same as b + b + b + b + b

jimthompson5910 (jim_thompson5910):

I placed the b term first

jimthompson5910 (jim_thompson5910):

6b+2 is the same as 2+6b

OpenStudy (anonymous):

I understand the b 5 times but how did you get 6

jimthompson5910 (jim_thompson5910):

oh, b = 1b So b + 5b = 1b + 5b = (1+5)b = 6b

OpenStudy (anonymous):

My teacher would count that wrong

jimthompson5910 (jim_thompson5910):

what wrong?

OpenStudy (anonymous):

ummmmmmmm this is confusing

jimthompson5910 (jim_thompson5910):

b + 5b is the same as saying one copy of b added to 5 copies of b So one copy + 5 copies = 6 copies

jimthompson5910 (jim_thompson5910):

put another way, one banana + 5 bananas = 6 bananas

OpenStudy (anonymous):

I understand now

OpenStudy (anonymous):

Thanks at first I was like whoa your crazy but now that I look at it i understand

jimthompson5910 (jim_thompson5910):

lol ok

jimthompson5910 (jim_thompson5910):

keep in mind that you can add in any order

jimthompson5910 (jim_thompson5910):

so you can rearrange the terms

OpenStudy (anonymous):

Yep! at least this isn't due tomoro cuz i stil have like 9 questions it is sooooo long and i still have more homework

jimthompson5910 (jim_thompson5910):

due at the end of the week?

OpenStudy (anonymous):

nope the day after I have an a/b schedule

jimthompson5910 (jim_thompson5910):

well at least you have a bit more time to do it

OpenStudy (anonymous):

Yea! Thanks for all your help gtg cya

jimthompson5910 (jim_thompson5910):

np

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