Question

Plz tell me answer of this in brief I will put correct answer as BRAINLIEST.......

Answer 1

Step-by-step explanation:

I think 4x-2y-3 .

If wrong plz comment.

Answer 2

Answer:

(4x - 2y - 3)

Step-by-step explanation:

Let 3 sides of triangle be S1, S2, S3

S1 = (2x + y - 1)

S2 = (x-2y+10)

S3 =?

Therefore,

Perimeter = S1 + S2 + S3

(7x-3y+6) = (2x+y-1) + (x-2y+10) + S3

(7x-3y+6) = [2x + y - 1 + x - 2y + 10 ] + S3

(7x-3y+6) = (3x - y + 9) + S3

S3 = (7x-3y+6) - (3x-y+9)

S3 = 7x - 3y + 6 - 3x +y - 9

S3 = 7x - 3x - 3y + y + 6 - 9

S3 = (4x - 2y - 3)

Hence, length of third side in terms of x and y is (4x-2y-3).