Equation - inverse

Solve for x:

7: x = 14: 1000

Correct result:

x =  500

Solution:

7:x=14:1000 x≠0   x/7=1000/14  2x=1000  x=5007: x=14: 1000 \ \\ x \ne 0 \ \\ \ \\ \ \\ x/7=1000/14 \ \\ \ \\ 2x=1000 \ \\ \ \\ x=500

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