Question

subtract
-5b-y/6b -8b+7y/6b
simplify your answer as much as possible

Answer 1

@jdoe0001

Answer 2

\(\bf -\cfrac{5b-y}{6b}-\cfrac{8b+7y}{6b}\quad or\quad \cfrac{-5b-y}{6b}-\cfrac{8b+7y}{6b}\quad ?\)

Answer 3

if the sign is in "front of the fraction", then is multiplying it
if not, then is not, it simply belongs to a term only
as opposed to affecting all other terms

Answer 4

so, is the negative, in front of the fraction, or just part of -5b?

Answer 5

its front of the fraction

Answer 6

k

Answer 7

how do I solve it?

Answer 8

\(\bf -\cfrac{5b-y}{6b}-\cfrac{8b+7y}{6b}\implies \cfrac{-5b+y}{6b}-\cfrac{8b+7y}{6b}
\\ \quad \\
\cfrac{-5b+y-(8b+7y)}{6b}\impliedby LCD\textit{ is 6b, since is the same for both}
\\ \quad \\
\cfrac{-5b+y-(8b+7y)}{6b}\implies \cfrac{-5b+y-8b-7y}{6b}\)

Answer 9

what do I do now?

Answer 10

subtract in the numerator what you can
and from whatever is left
see if you can cancel out anything with the denominator

Answer 11

-7b+y-7y/b?

Answer 12

hmmm....
something tells me the negative sign is not the proper place
can you post a quick screenshot of it?

use the blue button that says [Attach File]

Answer 13

it is in the right spot its in front of the problem

Answer 14

well

-5b-8b = -13b
+y-7y = -6y

so the top gives then -13b-6y
and the denominator is 6b

no common factors atop and below there

Answer 15

but if the 8b or the 5b were of a different sign... there could be one, thus I'd think the signs might be off, thus a screenshot may clarify that

Answer 16

the - sign is not apart of the numbers its totally separate its in front of the fractions

Answer 17

ok... then those are the values then \(\bf \cfrac{-5b+y-(8b+7y)}{6b}\implies \cfrac{-5b+y-8b-7y}{6b}\implies \cfrac{-13b-6y}{6b}\)

Answer 18

and now I cancel them out like -13-y?

Answer 19

-y? is -6y
well.. you can't simplify it further

Answer 20

like 13b -6y/6b wouldn't you cancel the 2 6's and the b and be left with -13 -y?

Answer 21

nope, if you have a + or - sign, no dice
only time you can do it, is when they're factors, or they have a * in between
that is, they're multiplying

Answer 22

reason why I think the signs migh be off
a quick screenshot might show a bit more

Answer 23

I cant screenshot but how do I get the answer?

Answer 24

well...that is the answer
\(\bf \cfrac{-5b+y-(8b+7y)}{6b}\implies \cfrac{-5b+y-8b-7y}{6b}\implies \cfrac{-13b-6y}{6b}\)