How do you solve #x+y+z=73, -2x+2y=8, x-z=-9#?
1 Answer
Jun 21, 2017
This is a system of linear equations.Let's label them as
eq1 :
eq2 :
eq3 :
Now eq2 can be written as
and eq3 can be written as
Now we replace the values of
Now replace the value of
Finally the solution of the system is