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Foundations
easy
0:00.0
Simplify:
3
x
+
4
x
−
x
3x + 4x - x
3
x
+
4
x
−
x
A
7
x
7x
7
x
B
6
x
6x
6
x
C
8
x
8x
8
x
D
x
x
x
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