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Mathematics 14 Online
OpenStudy (anonymous):

solve -3(5n+2)=21

OpenStudy (kuoministers):

do you know how to expand brackets? just show me your working and ill try help

OpenStudy (anonymous):

no

OpenStudy (anonymous):

\[-3(5n + 2) = 21\]\[-15n - 6= 21\]\[-15n = 27\]\[n = \frac{ -27 }{ 15 }\]\[n = \frac{ -9 }{ 5 }\]

OpenStudy (kuoministers):

great... dont give the answer away bro... http://openstudy.com/code-of-conduct

OpenStudy (kuoministers):

do you understand how to work out the question?

OpenStudy (anonymous):

yes

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