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13-01-2015
Mathematics

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How to solve 11(k-1)=7(k-9) in a shorter and easier way????

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tristencopple tristencopple

13-01-2015

11(k+-1)=7(k+-9)

11k+-11=7k+-63

-7k -7k

4k+-11=-63

+11 +11

4÷4k=52÷4

k=13 that's how I would do it.

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