annawairbellly annawairbellly

20-09-2017
Mathematics

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What does n equal in this equation? n-2=(10n+4)/2 (btw 10n+4 over 2)

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JustTasnim JustTasnim

20-09-2017

n-2=(10n+4)/2
Multiply each side by 2
2(n-2)=10n+4
Expand the brackets
2n-4=10n+4
Subtract 4 from each side
2n-8=10n
Subtract 2n from each side
-8=8n
Divide each side by 8
-1=n

Hope this helped

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