Solve the following systems of equations:






Adding eq 1 and eq2


2(x + z) = 6


x = 3 – z


(3) – (2) – (1)


y – 5z = - 4


y = -4 + 5z


Substituting in eq2


3 – z - 4 + 5z + z = 2


5z = 3


z = 3/5


Thus, x = 3 – z


x = 12/5


Y = 5z – 4


y = -1


38