Mathematics
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OpenStudy (anonymous):
6+x
___=4
2 how do you solve this?
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OpenStudy (saifoo.khan):
\[\frac{6+x}{2}=4\]
\[6+x=8\]
\[x = 8 - 6\]
x=2
OpenStudy (anonymous):
so you dont divide anything
OpenStudy (saifoo.khan):
No, we multiply two on both sides to get rid of the 2..
OpenStudy (anonymous):
x=2
OpenStudy (anonymous):
6+x=8
x=8-6
x=2
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OpenStudy (anonymous):
THANKS THE BOTH OF YOU!!!
OpenStudy (anonymous):
OK SO 9+n
__
4 =15 do you multiply both sides by 4?
OpenStudy (anonymous):
no no
OpenStudy (anonymous):
not both side by 4
OpenStudy (anonymous):
just when 4 goes to 15 it multiply by it
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OpenStudy (anonymous):
ok so how do i work this problem?
OpenStudy (anonymous):
9+n=15*4
9+n=60
n=60-9
n=51
OpenStudy (anonymous):
ok thanks so what about b+11
___
3=-2
OpenStudy (anonymous):
ary
OpenStudy (anonymous):
b+11=-2*3
b+11=-6
b=-17
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OpenStudy (anonymous):
ok so for -12r+4=100 do you add 100+4 then divide by -12
OpenStudy (anonymous):
no
OpenStudy (anonymous):
subtrct
OpenStudy (anonymous):
oo because its a negitave
OpenStudy (anonymous):
100-4
96
then divid by -12
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OpenStudy (anonymous):
no bc it positve when it goes to other hand it will negative
OpenStudy (anonymous):
why did you subtract
OpenStudy (anonymous):
reason is above
OpenStudy (anonymous):
yeah sorry you do inverse operation
OpenStudy (anonymous):
what do u mean?
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OpenStudy (anonymous):
what r u saying?
OpenStudy (anonymous):
im asking why did you subtract?
OpenStudy (anonymous):
because its positive when it goes to other hand it must be negative
OpenStudy (anonymous):
when any no goes to other hand its chang its sign
OpenStudy (anonymous):
if it positive then other hand its negative
if negative then other hand it positive
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OpenStudy (anonymous):
yeah so inverse operation
OpenStudy (anonymous):
if multiplt then divid on othr side
OpenStudy (anonymous):
if divid so multiply on other site
OpenStudy (anonymous):
yah
OpenStudy (anonymous):
hve u got it now?