SOLUTION: what is the step for solving:
x+y=4
x+z=4
y+z=4
Algebra.Com
Question 220740: what is the step for solving:
x+y=4
x+z=4
y+z=4
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
what is the step for solving:
x+y=4
x+z=4
y+z=4
---------
There are several methods. One is to look at it and see that
x = y = z = 2
-------------
Another is elimination and substitution.
x+y=4 Eqn 1 --> x=4-y
x+z=4 Eqn 2
y+z=4 Eqn 3
-----------Sub for x into Eqn 2
x+z = 4
4-y + z = 4
y = z
Sub for y into Eqn 3
z+z = 4
z = 2
-----
y = 2
-----
x = 2
RELATED QUESTIONS
Solve the system for x, y and z:
x+y+z=8
x-y+z=2... (answered by Alan3354,TigerAlgebra)
(.4*X)+(.4*Y)+(.2*Z)=70 Solve for... (answered by Alan3354)
if (x/y)=8 and y/z=4; then what is the value of... (answered by Fombitz)
TO SOLVE FOR THE TRHEE UNKNOWNS X,Y,Z FROM
Z=4*(X+Y)... (answered by Fombitz)
With these equations: z=x-y+4, z=y-w-3, and z=w-x+5 , what is the value of... (answered by solver91311)
I am not understanding how to Solve the system of linear equation using matrices... (answered by ewatrrr)
can you please help me in solving for x;y;z
x+y-2z=5 .........equation 1... (answered by Theo,Edwin McCravy)
Solve the system for x, y and z:
x+y+z=7
2x+y-z=4... (answered by TigerAlgebra)
solve for y in the equation
3/x - 4/y + 6/z = 1
9/x + 8/y - 12/z = 3
9/x - 4/y + 12/z... (answered by KMST)