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OpenStudy (anonymous):
how do you show your work for the equation x+7=12?
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hero (hero):
\[x+7=12\]Subtract 7 from both sides. \[x+7-7=12-7\]
hero (hero):
Wow, using this on a tablet is impossible.
OpenStudy (anonymous):
x + 7 =12. Subtract 7 on both sides. X - 7 -7 = 12 -7. The 7's cancel out and 12 -7 equals 5, so the answer would be: x= 5
OpenStudy (anonymous):
there should be no work to show you know right away that \(5+7=12\)
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