Question

17. The correct relationship after eliminating x, y and z from x + y = a, y + z = b, z + x = c and xy + z = m is: a)m = x + y + z b)2m = a + b + c c)m = X - Y -Z d)2m = x - y - e) None of the above​

Answer 1

Answer:

2 * m = a + b + c

Step-by-step explanation:

(1) x+y = a

(2) y+z=b

(3) z+x = c

adding (1), (2) and (3)

x+ y + y + z + z + x = a + b + c

2x + 2y + 2z = a + b + c

2 (x + y + z) = a + b + c

Here, x + y + z = m

Hence, 2 * m = a + b + c