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Functions
easy
0:00.0
If
f
(
x
)
=
2
x
+
10
f(x) = 2x + 10
f
(
x
)
=
2
x
+
10
, find
x
x
x
such that
f
(
x
)
=
30
f(x) = 30
f
(
x
)
=
30
.
A
10
B
20
C
40
D
50
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