Question

The expression x-y equals 0.7 if x and y have certain values. Evaluate the following expression with the same values of x and y

Answer 1

The expression with the same values of (1/x – y) in x and y will be 10 / 7.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The expression x-y equals 0.7.

x - y = 0.7    …1

If x and y have certain values.

Then the expression with the same values of (1/x – y) in x and y will be

Take the reciprocal of equation 1, then we have

1 / (x – y) = 1 / 0.7

1 / (x – y) = 10 / 7.

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