Question

The value of (x+y-5) +(y-x+4) -( 2x-y+7) is

-2x-3y+6

X+2y-15

-2x+3y-8

None of these

plx ans​

Answer 1

Explanation:

(x+y-5)+(y-x+4)-2x-y+7)

= x+y-5+y-x+4-2x-y+

= x-x-2x+y+y-y-5+4+7

= x-3x+2y-y-5+11

= -2x+y+6

So,the answer is - None of these.

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