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Formation of Algebraic Expressions

If x % y=x+y-...

Question

If x % y = x + y - xy, then 13 % 7 = __

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Solution

Given, x % y = x + y - xy

Therefore, x = 13 and y = 7

13 % 7 = 13 + 7 - 13 $\times$ 7 = -71

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Similar questions

If x @ y = x + y - xy, then 13 @ 7 = __

If x @ y = x + y - xy, then 13 @ 7 = __

\frac{5 - \sqrt{3}}{2 + \sqrt{3}} = x + y \sqrt{3}

, then

(a) x = 13, y = −7

(b) x = −13, y = 7

(c) x = −13, y = −7

(d) x = 13, y = 7

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.

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, then xy is __________.

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