# 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