3 years ago

LITERAL EQUATIONS2S=n(a+k) for k

1 answer:

7 0

$2S=n(a+k)\ \ \ |Omit\ the\ bracket\\\\
2S=na+nk\ \ \ \ |Subtract\ "na"\ from\ each\ side\\\\
2S-na=nk\ \ \ \ |Divide\ by\ n\\\\
\frac{2S-na}{n}=k\\\\Solution\ is\ k=\frac{2S-na}{n}.$

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