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OpenStudy (anonymous):
simplify 3[ 25 - (-31 - 18)]
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OpenStudy (zarkon):
222
OpenStudy (anonymous):
are you sure?
OpenStudy (zarkon):
yes ;)
OpenStudy (anonymous):
the way that zarkon achieved his answer is by doing the sums in the brackets first (-31-18)=-49 25-(-49)=25+49=74 3*74=222
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OpenStudy (zarkon):
No I didn't...I used my calculator ;)
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