Math
233A
Homework #19
Chapter 4,2: Solving Systems of Equations in Three Variables
Name
1. Solve the following system by using
2.
Solve the following system by using
substitution,
jfcxr""'"^
PlT^i.
x^-i substitution.
x
+
y-z
=
0_
y=-2.t*\^''\c
+
4>'
+
5z
=
8
-A
2i^4y-6z =
-8
2=ftiist.
Ho
solalfcn, \
37"Soivrrthe
following system bv usingThe\'
following
system by using ihe\ \- \. Solve the following system by using the
addition method.
^
^ \J -a
addition method.
x
+
2_y
+ z =
4
'3x-'4y+'z =
4 ^ 6,
-6jc + 8y-2z = -8-?
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