7th Grade Math Quiz
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EXPRESSIONS AND EQUATIONS
Question 1
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A student writes two expressions for points scored in a game:
(
3
4
x
+
5
)
\left(\frac{3}{4}x+5\right)
(
4
3
x
+
5
)
and
(
1
2
x
−
3
)
\left(\frac{1}{2}x-3\right)
(
2
1
x
−
3
)
. Simplify the sum
(
3
4
x
+
5
)
+
(
1
2
x
−
3
)
\left(\frac{3}{4}x+5\right)+\left(\frac{1}{2}x-3\right)
(
4
3
x
+
5
)
+
(
2
1
x
−
3
)
.
A
1
4
x
+
2
\frac{1}{4}x+2
4
1
x
+
2
B
5
4
x
+
2
\frac{5}{4}x+2
4
5
x
+
2
C
7
8
x
+
2
\frac{7}{8}x+2
8
7
x
+
2
D
5
4
x
−
8
\frac{5}{4}x-8
4
5
x
−
8
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