Question

If 5x-2y=10 & 2x-5y=11 then x-y=?

Answer 1

solve the problem in pic.

Answer 2

SOLUTION

GIVEN

5x - 2y = 10 & 2x - 5y = 11

TO DETERMINE

The value of x - y

EVALUATION

Here the given system of equations are

5x - 2y = 10 - - - - - - - (1)

2x - 5y = 11 - - - - - - - -(2)

Equation 1 + Equation 2 gives

7x - 7y = 21

$\implies \sf{7(x - y) = 21}$

$\implies \sf{(x - y) = 3}$

FINAL ANSWER

x - y = 3

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