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Mathematics
Mathematics
Problem
If
f
(
x
)
=
5
x
−
7
f(x)=5x-7
f
(
x
)
=
5
x
−
7
, then
f
(
−
3
)
f(-3)
f
(
−
3
)
equals a)
−
8
-8
−
8
b)
22
22
22
c)
−
22
-22
−
22
d)
−
15
-15
−
15
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