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Math Problems
Algebra 1
Evaluate variable expressions involving rational numbers
Evaluate
\newline
6
t
−
20
−
32
u
6t-20-32u
6
t
−
20
−
32
u
when
\newline
t
=
6
t=6
t
=
6
and
\newline
u
=
1
4
u=\frac{1}{4}
u
=
4
1
.
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Evaluate
5
c
+
c
d
5c+cd
5
c
+
c
d
when
c
=
1
5
c=\frac{1}{5}
c
=
5
1
and
d
=
15
d=15
d
=
15
.
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Evaluate
r
s
+
14
s
rs+14s
rs
+
14
s
when
r
=
6
r=6
r
=
6
and
s
=
1
4
s=\frac{1}{4}
s
=
4
1
.
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Evaluate
a
b
−
0.5
b
ab - 0.5b
ab
−
0.5
b
when
a
=
1
a=1
a
=
1
and
b
=
5
b=5
b
=
5
.
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