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Mathematics
Problem
If
a
<
b
a<b
a
<
b
and
c
c
c
is any real number, which of the following statements is always true? a)
a
+
c
>
b
+
c
a+c > b+c
a
+
c
>
b
+
c
b)
−
a
<
−
b
-a < -b
−
a
<
−
b
c)
a
+
c
<
b
+
c
a+c < b+c
a
+
c
<
b
+
c
d)
a
c
<
b
c
ac < bc
a
c
<
b
c
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