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Math Problems
Grade 7
Add and subtract positive and negative fractions
2
x
+
8
5
=
3
x
+
2
6
2x+\frac{8}{5} = 3x+\frac{2}{6}
2
x
+
5
8
=
3
x
+
6
2
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1
4
+
1
4
\frac{1}{4} + \frac{1}{4}
4
1
+
4
1
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9
2
7
+
4
7
/
3
7
9 \frac{2}{7}+\frac{4}{7}/\frac{3}{7}
9
7
2
+
7
4
/
7
3
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8
8
8
)
n
−
5
≤
1.6
\frac{\mathrm{n}}{-5} \leq 1.6
−
5
n
≤
1.6
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2
x
+
9
5
=
5
\frac{2 x+9}{5}=5
5
2
x
+
9
=
5
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2
x
−
2
=
4
x
\frac{2}{x-2}=\frac{4}{x}
x
−
2
2
=
x
4
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Mathway
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rac{
−
8
-8
−
8
+x}{
3
3
3
!}=
−
3
-3
−
3
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3
3
3
. Find three rational numbers between
−
7
2
-\frac{7}{2}
−
2
7
and
−
2
-2
−
2
.
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1
1
1
+
1
1
1
+
2
2
2
/
3
3
3
+
1
1
1
/
3
3
3
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Solve for
n
n
n
and simplify your answer.
\newline
−
6
=
2
3
n
-6=\frac{2}{3} n
−
6
=
3
2
n
\newline
Answer:
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