Question

Solve the system of linear equations in three variables x+y+z=89 ,y=3z, x =z -6.​

Answer 1

Answer:

x=113

Step-by-step explanation:

z= -6

3z = 3×(-6)

3z= -18

x+y+z=89

x+(-18)+(-6) = 89

x-24=89

x= 113

Answer 2

Answer:

x=113

hope it helps you