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Help me with this please anyone x

Help me with this please anyone x-example-1
User Simgineer
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\bf \begin{array}{cccccclllll} \textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\ \textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\ y&=&{{ k}}&\cdot&x \\ && y={{k }}x \end{array}\\\\ -------------------------------\\\\


\bf \textit{we know that }\qquad \begin{cases} y=42\\ x=6 \end{cases}\implies 42=k6\implies \cfrac{42}{6}=k \\\\\\ 7=k\impliedby \textit{constant of variation} \\\\\\ thus\qquad \qquad y=7x \\\\\\ \textit{what is
User Iammurtaza
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