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Mathematics 20 Online
lorena123:

Who can help with inequality?

snowflake0531:

post it

lorena123:

−8x + 40 > −16

snowflake0531:

hmmm, first, let's ignore the > for just hte first step -8x + 40 = -16 subtract 40 from eachside

lorena123:

-24

snowflake0531:

um, subtact 40 what is 16 plus 40?

CripQUEZZ:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @lorena123 -24 \(\color{#0cbb34}{\text{End of Quote}}\) No bc when you subtract a negative and a negative your technically add then putting the negative sign back beside it

lorena123:

answer is 3 but the sign is the problem

snowflake0531:

no

CripQUEZZ:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @lorena123 answer is 3 but the sign is the problem \(\color{#0cbb34}{\text{End of Quote}}\) Wrong

lorena123:

one of these is the answer H. x > −3 J. x < −3

snowflake0531:

−8x + 40 > −16 -8x > -56 8x < 56 x < what

lorena123:

x < −3

supie:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @lorena123 x < −3 \(\color{#0cbb34}{\text{End of Quote}}\) No, incorrect.

snowflake0531:

bruh, don't be so stubborn with teh negative3 3 lol

lorena123:

im confused lol

snowflake0531:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @snowflake0531 −8x + 40 > −16 -8x > -56 8x < 56 x < what \(\color{#0cbb34}{\text{End of Quote}}\) do you get how i got -8x > -56

lorena123:

no

snowflake0531:

do you know how to solve x+4=10 what is x

lorena123:

i supposebly did work on the sheet but its probably wrong

supie:

How about we do it step by step? the first step is to subtract 40 from both sides Change the plus in `+40` to a minus \(−8x\cancel{+40}>−16\) \(~~~~~~~\cancel{-40}~~~~-40\) What is (-16)-40=?

lorena123:

i got -24 but idk are we adding or subtracting

supie:

subtracting

snowflake0531:

you did 40-16 you should do 40+16 and then add a negative sign

lorena123:

dont mind the messy handwriting

lorena123:

40 plus 16 is 56 so then -56

snowflake0531:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @lorena123 40 plus 16 is 56 so then -56 \(\color{#0cbb34}{\text{End of Quote}}\) yes

lorena123:

ok wait but im stuck at do we add or sub?

supie:

Yes so now we have \(−8x>−56\) so ÷-8 to both sides of the equation do you think you can do that?

lorena123:

yes i can

supie:

Ok, lmk what you get-

lorena123:

7.25

supie:

Close but no,

lorena123:

round it to 7

snowflake0531:

not rounding 56/8 is 7

lorena123:

Is this the answer x < 7

supie:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @lorena123 Is this the answer x < 7 \(\color{#0cbb34}{\text{End of Quote}}\) yes

lorena123:

ok thx

supie:

np :) thanx for the medal

lorena123:

Np

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