SOLUTION: X+Y=26, Y+Z=23, Z+X=37. THEN X+Y+Z =?

Question 990320: X+Y=26, Y+Z=23, Z+X=37. THEN X+Y+Z =?
Answer by ikleyn(52847) (Show Source): You can put this solution on YOUR website!
.
You are given

X + Y     = 26, 

    Y + Z = 23, 

X     + Z = 37.

Add all three equations. You will have

2*(X + Y + Z) = 26 + 23 + 37 = 86.

Hence,

X + Y + Z = = 43.

RELATED QUESTIONS
x+y+z=23 xyz=396 x=? y=?... (answered by Fombitz)

(y + z)/x - z/x (answered by Fombitz)

(x+y-z)(x+y+z) (answered by richwmiller)

(x+y)-(y+z)-(z+x) (answered by sciwiz55)

Z=x+y ___... (answered by Fombitz)

(X+y)/z=(y-x) (answered by Alan3354)

x+y+z=-x^2-y^2+z... (answered by greenestamps,Alan3354)

If Y(X-1)=Z then X... (answered by MathLover1)

x+y+z=8.25 (answered by stanbon)