Example 4 : Solve the following equations by
Crammer's rule :
x + y = 0, y + z = 2, x + z = 4.
Answers
Answered by
0
Answer:
x + y = 0 ......eq. 1
y + z = 2 ......eq. 2
x + z = 4 ........eq. 3
Adding eq. 1 , eq. 2 & eq. 3
x + y + y + z + x + z = 0 + 2 + 4
2( x + y + z) = 6
•°• x + y + z = 6/2 = 3
therefore, the value of. x + y + z = 3
Answered by
2
Answer:
z=3
Step-by-step explanation:
from eqn 2-----> y=2-z
from eqn 3 ----> x=4-z
put this x,y in eqn 1....
So,
2-z+4-z=0
6-2z=0
2z=6
so,
z=3
x=1
y= -1
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