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Mathematics 8 Online
OpenStudy (ledah):

Simplify: (8b – 3c) – (4b + 5c) got 4b-2c is that correct?

OpenStudy (diyadiya):

Nope

OpenStudy (anonymous):

4b-8c, -3c-+5=-3c-5c

OpenStudy (australopithecus):

(8b – 3c) + (– 1)(4b + 5c)

OpenStudy (australopithecus):

this can be expressed as

OpenStudy (diyadiya):

(8b -3c) - (4b +5c) = 8b -3c -4b - 5c The sign changes

OpenStudy (anonymous):

(8b - 3c) - (4b + 5c) Distribute the negative 1 and get rid of the parentheses. 8b - 3c - 4b - 5c

OpenStudy (ledah):

4b-8c?

OpenStudy (ledah):

Wait that doesn't look right either...

OpenStudy (anonymous):

That's correct :)

OpenStudy (ledah):

oh.. Okay Thanks

OpenStudy (anonymous):

The only reason the parentheses are there is because there is a negative in front. This is basically saying distribute the negative.

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