Question

5/x =7/x-4 cross multiply

Answer 1

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5/x =7/x-4 cross multiply

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$\frac{5}{x} = \frac{7}{x - 4} \\ 5(x - 4) = 7x \\ 5x - 20 = 7x \\ - 20 = 7x - 5x \\ - 20 = 2x \\ x = \frac{ - 20}{2} \\ x = - 10$

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Answer 2

Answer:

5/x=7/x-4

5(x-4)=7x

5x-20=7x

-20=7x-5x

-20=2x

-20/2=x

x=-10