Answer:
Step-by-step explanation:

a)
- Add
to both sides of the equation: 
- Divide both sides by
:
⇒ 
b)

⇒ 
⇒ 

⇒ 
⇒ 

⇒ 
⇒ 
c) approximation to the location of one of the roots of the equation. Each iteration gives a slightly more accurate value of a root
.
Equivalent fraction for four this is 8/10
Answer:
x = 2, y = 7, z = 12
Step-by-step explanation:
x + y - z = -3 (1)
3x - y + z = 11 (2)
x - 4y + z = -14 (3)
add (1) and (2)
4x = 8 x = 2
add (1) and (3)
2x - 3y = -17
2(2) - 3y = -17
-3y = -17 - 4
-3y = -21
y = 7
Find z using any equation
x + y - z = -3
2 + 7 - z = -3
9 - z = -3
z = 12
Answer:
2/6 or simpler 1/3
Step-by-step explanation: