x + 2y = 3
y + 2z = -4
x + y + 2z = 5
x - 4 = 5
x = 5 + 4
x = 9
9 + 2y = 3
2y = 3 - 9
2y = -6
y = -6/2
y = -3.
-3 + 2z = -4
2z = -4 + 3
z = -1/2.
x + z = 9 - 1/2 = (18 - 1) / 2 = 17/2 = 8 1/2.
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
x + 2y = 3
y + 2z = -4
x + y + 2z = 5
x + y + 2z = 5
x - 4 = 5
x = 5 + 4
x = 9
x + 2y = 3
9 + 2y = 3
2y = 3 - 9
2y = -6
y = -6/2
y = -3.
y + 2z = -4
-3 + 2z = -4
2z = -4 + 3
z = -1/2.
x + z = 9 - 1/2 = (18 - 1) / 2 = 17/2 = 8 1/2.