geometry
posted by Chanell .
if x+y=11, y+z=14, and x+z=13, what is the value of x+y+z ?

geometry 
Henry
Eq1: X + Y = 11.
Eq2: Y + Z = 14.
Y = 14  Z.
Eq3: X + Z = 13.
X = 13  Z.
In Eq1, substitute (13Z) for X, and
(14Z) for Y:
(13Z) + (14Z) = 11,
13  Z + 14  Z = 11,
2Z + 27 = 11,
2Z = 11  27 = 16,
Z = 8.
X + Y + Z,
Substitute 11 for y and 8 for Z:
(X+Y)+Z = 11 + 8 = 19. 
geometry 
Henry
CORRECTION:
Substitute 11 for (x+y).
Respond to this Question
Similar Questions

geometry
1.in which geometry do lines no contain an infinite number of points? 
geometry
I am not sure I understand especially the part where it says "the value". If the surface area of a sphere decreases, will the value of the volume remain the same? 
geometry
find the value value of X m<AOB=4x2, m<BOC=5x+10 m<COD=3x8 
geometry
The measures of the angles in a quadrilateral are represented by x, 2x, 3x, and 3x. Write an equation that would allow you to solve for the value of x. Solve for the value of x 
I need an answermolecular/electron geometry
Can anyone help me out with the differences between electron geometry and molecular geometry for SCl6? 
Molecular and Electron geometry
Can anyone help me out with the differences between electron geometry and molecular geometry for SCl6? 
geometry
Expected value If on a $1 bet, Paul Goldstein's expected value is 0.30, what is Paul's expected value on a $5 bet. I got 1.50 but my teacher said it wasn't correct. 
Chemistry
I just need some ideas of what to put for these on my homework examples for extra credit Name a molecule that has: A) Tetrahedral Geometry B) Trigonal planar geometry C) Linear Geometry D) Bent Geometry 
Chemistry
I just need some ideas of what to put for these on my homework examples for extra credit Name a molecule that has: A) Tetrahedral Geometry B) Trigonal planar geometry C) Linear Geometry D) Bent Geometry 
Geometry
I have two questions Given) MON= PQR, with MO= 20, MN= 32, and PR= 3x10, find the value of x Given) WIN= LUV, with m<W=38, m<V= 102, and m<I= 7x+5, find the value of x