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Mathematics
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OpenStudy (anonymous):
how do i solve this one it is longer
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OpenStudy (anonymous):
\[50>7n+8>22\]
OpenStudy (anonymous):
@Michele_Laino
OpenStudy (freckles):
you want to get n alone there in the middle part
OpenStudy (freckles):
Try subtracting 8 first... And see if you can try to figure out the next step.
OpenStudy (anonymous):
i subtract 8 from 8 and 22 right
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OpenStudy (freckles):
subtract 8 "from all sides"
50-8> 7n+8-8>22-8
OpenStudy (anonymous):
ok
OpenStudy (freckles):
can you show me the inequality you have now?
OpenStudy (anonymous):
i keep getting decimals
OpenStudy (freckles):
50-8 is not a decimal
8-8 is not a decimal
22-8 is not a decimal
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OpenStudy (freckles):
if you take 8 away from 50 you are left with 42
if you take 8 away from 8 you are left with 0
if you take 8 away from 22 you are left with 14
OpenStudy (freckles):
\[50-8> 7n+8-8>22-8 \\ 42 > 7n > 14\]
OpenStudy (freckles):
last step is undo that multiplication of 7
OpenStudy (anonymous):
ok so i divide right
OpenStudy (anonymous):
\[6>n>2\]
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OpenStudy (anonymous):
@freckles is it right
OpenStudy (freckles):
42 divided by 7 is 6
7 divided by 7 is 1
14 divided by 7 is 2
so yes 6>n>2 is right
OpenStudy (anonymous):
thanks
OpenStudy (freckles):
np
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