SOLUTION: Please help me solve the system: x + 3y + 4z = -14 4y +2z = -22 z= -1

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Question 274481: Please help me solve the system:
x + 3y + 4z = -14
4y +2z = -22
z= -1
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
substituting ___ 4y + 2(-1) = -22 ___ 4y = -20 ___ y = -5

substituting ___ x + 3(-5) + 4(-1) = -14 ___ x = 5