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I need help on a K12 Math assessment it's 9:00 pm and Ive been trying to complete this all day :( please help here is picture of problem
http://i.imgur.com/A9RtbOe.jpg

- katytho

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- katieb

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- katytho

if anyone could help me with this that would be great Ive done it 2 times and got bad grades both times

- anonymous

multiply both sides by 5 to clear the annoying fraction

- katytho

the parentheses on the left side and on the right side?

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## More answers

- anonymous

you should get \[2x-15+3x=21\tfrac{1}{4}\] now at least the fractions on the left are gone

- anonymous

yes left and right

- katytho

okay

- anonymous

now combine like terms on the left, i .e. add \(2x+3x\)

- katytho

okay 5x

- anonymous

so now we are at \[5x-15=21\tfrac{1}{4}\] add 15

- katytho

sorry if my spelling or grammer is a bit off im really tired right now :|

- katytho

what are we adding 15 to

- anonymous

no one here is a grammarian (least of all me)

- anonymous

the math teaches say "add it to both sides" but you really add it to the right to get rid of the -15 on the left

- katytho

oh ok yes I think

- katytho

5x = 21 1/4 is left

- anonymous

no

- katytho

oh ok

- anonymous

you need to add the 15 to the right as well

- katytho

5x = 36 1/4

- anonymous

\[5x=36\tfrac{1}{4}\]

- anonymous

yeah that
i hate mixed numbers
now divide by 5

- katytho

divide what by 5 sorry again

- katytho

5/5 ?

- anonymous

you have \[5x=36\tfrac{1}{4}\] and you want \[x=\text{sommat}\] to get there you have to divide both sides by 5

- anonymous

i.e. \[x=36\tfrac{1}{4}\div 5\]

- katytho

7 1/4 right?

- anonymous

yup

- katytho

:D THANK YOU!

- anonymous

yw
you got more?
i noticed you were on a deadline

- katytho

That was actually the last question of the assessment i can tell you how i did tho

- anonymous

saved the best for last i guess

- katytho

Ya

- anonymous

is it a placement test?

- katytho

k12 is a bit wierd you take a small test to see if you learned everything correctly from the lesson before it after you go through the lesson.

- anonymous

ugh

- katytho

By the way I got 5/5 :)

- katytho

Thank you again

- anonymous

that is good! guess you got the first 4 on your own
yw

- katytho

ya ^-^

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