Question

x+y=10 z+y=20 x+z=24 find x+y+z=?

Answer 1

hi

X+y=10 ...[1]

z+y=20..[2]

 x+z=24 .[3]

now lets add all of them

2x +2y +2z = 54

now let us divide all by 2

=> 

x + y + z = 27

hence x + y + z = 27

hope it helps u


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