Guest Session: 1 Question Remaining.
Create Account
to save progress.
Login
Foundations
easy
0:00.0
Simplify:
12
x
−
4
x
+
x
12x - 4x + x
12
x
−
4
x
+
x
A
12
x
12x
12
x
B
9
x
9x
9
x
C
7
x
7x
7
x
D
8
x
8x
8
x
Submit Answer