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# Algebraic Equation

Thu 12 Feb, 2009 09:01 am
what is
4a+7bc-9b-6c-(3bc+2a+12c-b)=?
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fresco

1
Thu 12 Feb, 2009 12:59 pm
@parini13,
That's not an "equation". It's an "expression" or an arbitrary "identity" when you done the tidying up.
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BarbieQPickle

1
Thu 12 Feb, 2009 01:08 pm
Here you go:

4a+7bc-9b-6c-(3bc+2a+12c-b)=

4a+7bc-9b-6c-3bc-2a-12c+b=

2a+4bc-8b-18c
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sullyfish6

1
Thu 12 Feb, 2009 06:30 pm
and reduced down (divided by 2) to lowest term:

a+2bc-4b-9c

fresco

1
Fri 13 Feb, 2009 12:20 am
@sullyfish6,
No you can't reduce it because its not an equation. You can only factorise it
e.g 2(a+2bc-4b-9c) or 2(a + 2b(c-2) -9c)
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BarbieQPickle

1
Fri 13 Feb, 2009 01:42 am
yeah, why would you 'reduce down and divide by two'. It's a basic problem, combine like terms, simplify.
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