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Foundations
easy
0:00.0
Evaluate
3
x
+
2
y
−
z
3x + 2y - z
3
x
+
2
y
−
z
for
x
=
1
x = 1
x
=
1
,
y
=
5
y = 5
y
=
5
, and
z
=
4
z = 4
z
=
4
.
A
7
B
13
C
9
D
11
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