Does anybody here know how to do the distributive property
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OpenStudy (anonymous):
Whats the problem?
jigglypuff314 (jigglypuff314):
distributive property: a(b+c) = ab + ac
and ab + ac = a(b+c)
OpenStudy (anonymous):
5(j+7) +8(j-6) ^^
jigglypuff314 (jigglypuff314):
so the 5(j+7) part would be
(5)(j) + (5)(7)
and the 8(j-6) part would be
(8)(j) - (8)(6)
jigglypuff314 (jigglypuff314):
so simplify (5)(j) + (5)(7) + (8)(j) - (8)(6)
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OpenStudy (anonymous):
Unfortunately I don't know how to do that
jigglypuff314 (jigglypuff314):
(5)(j) = 5 times j = just 5j
(5)(7) = 5 time 7 =
(8)(j) = 8 times j = just 8j
(8)(6) = 8 times 6 =
OpenStudy (anonymous):
Thanks :)
jigglypuff314 (jigglypuff314):
you're welcome :)
OpenStudy (anonymous):
So would the answer be 5j+35+8j-48 ?
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jigglypuff314 (jigglypuff314):
then you can simplify even more...
look at it this way:
5j + 8j + 35 - 48
OpenStudy (anonymous):
So, that's the final answer ?
jigglypuff314 (jigglypuff314):
well you can simplify
35 - 48 =
and (5 + 8)j =
OpenStudy (anonymous):
35 -48 would be -13 and (5+8)j= 13 j
jigglypuff314 (jigglypuff314):
yep :) so 13j - 13
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OpenStudy (anonymous):
1j
OpenStudy (anonymous):
Or would it be just 1
jigglypuff314 (jigglypuff314):
not quite :)
keep in mind that numbers with variables attached to them cannot be added to another number without the same variable attached
so it would just be 13j - 13
OpenStudy (anonymous):
Oh now I get it :)
OpenStudy (anonymous):
Would the answer to -6+5(1+r) be -1+r
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jigglypuff314 (jigglypuff314):
not quite,
you would use the distributive property so
-6+5(1+r) =
-6 + 5 + 5r
^ and -6 + 5 =