Question

find the solution to the system of equations.
x+y+z=23
y+z=14
z=9

Answer 1

A) x+y+z=23
B) y+z=14
C) z=9
Since z = 9 then
A) x + y = 14
B) y = 5
A) x + y+ z=23
A) x + 5  + 9 = 23
A) x = 9