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OpenStudy (anonymous):
@Squirrels
OpenStudy (anonymous):
square both sides and start with
\[12-x=121\]
OpenStudy (anonymous):
then it takes two steps to solve for \(x\)
you good from there?
OpenStudy (anonymous):
where did yo get 121?
OpenStudy (anonymous):
i squared both sides and \(11^2=121\)
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OpenStudy (anonymous):
and than 121/12?
OpenStudy (anonymous):
oh no lets go slow
OpenStudy (squirrels):
You subtract 12 from both sides at that point since you want to get x by itself
OpenStudy (anonymous):
\[\sqrt{12-x}=11\] square both sides, get
\[12-x=121\]
subtract \(12\) get
\[-x=109\]
OpenStudy (anonymous):
then change the signs and your final answer is \(x=-109\)
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OpenStudy (anonymous):
Oh..
OpenStudy (squirrels):
Do you still get it? or do you need it to be clarified?
OpenStudy (squirrels):
Ill explain it easier if you still need help
OpenStudy (anonymous):
Yeah if you could. I don't see why the number was positive and then he switched to negative.
OpenStudy (squirrels):
Ok do you want me to start from the beginning or just that part?
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OpenStudy (anonymous):
beginning is fine.
OpenStudy (squirrels):
Ok so the equation is √(12 – x) = 11.
You see that square root? -> √(12 – x) = 11. Well we want to get rid of that to get x by itself. So what is the opposite of square root? ^2