7. х — 4у + 4х — у+ 2z %3D —1 2х + 2у — 3z %3D - 20 z = 6.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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7. x – 4y + z =
y + 2z = -1
2.x + 2y – 3z = -20
6.
4х —
Transcribed Image Text:7. x – 4y + z = y + 2z = -1 2.x + 2y – 3z = -20 6. 4х —
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