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Algebra 1
Name___________________________________
Solving Equations by Cross Multiplication
Date________________ Period____
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Solve each proportion.
1)
n 6
=
5 7
2)
4 v
=
8 6
3)
9 k
=
7 2
4)
2
10
=
10
x
5)
7 6
=
5 n
6)
4 9
=
9 m
7)
b 10
=
3
9
8)
3 5
=
6 r
9)
5 p
=
4 5
10)
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-1-
9
x
=
10 6
Worksheet by Kuta Software LLC
11)
n+7 4
=
7
9
12)
6
2
=
9 x−5
13)
8
a+1
=
10
3
14)
4 p+6
=
3
8
15)
8
6
=
m−4 2
16)
3
5
=
7 n−8
17)
8
7
=
3 k−2
18)
7
x+3
=
10
4
19)
3
x+2
=
10
8
20)
7
3
=
8 x−6
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-2-
Worksheet by Kuta Software LLC
21)
n+5 n
=
4
6
22)
n+4 6
=
4n
4
23)
10
6
=
x
x−9
24)
6
8
=
v v+4
25)
a
6
=
a − 10 9
26)
10
8
=
a
a + 10
27)
r
7
=
r+5 5
28)
x x+4
=
5
7
29)
5
x + 10
=
10
x
30)
b b−1
=
2
9
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-3-
Worksheet by Kuta Software LLC
31)
b−8 b−9
=
8
2
32)
8 r+9
=
3 r+8
33)
3 x−2
=
7 x−7
34)
n−4 n+8
=
9
2
35)
x+2 7
=
x+7 4
36)
p + 9 p − 10
=
10
9
37)
v+6 v+9
=
3
8
38)
6
5
=
k+3 k−7
39)
m−8 m−6
=
5
6
40)
n+7 n−6
=
2
9
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-4-
Worksheet by Kuta Software LLC
Answers to Solving Equations by Cross Multiplication
{ }
{ }
{ }
30
7
25
9)
4
37
17)
8
25) {−20}
1)
33)
{ }
−
7
4
3)
11)
19)
27)
35)
{ }
{ }
{}
{ }
{ }
18
7
−
35
9
2
5
35
2
41
−
3
−
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{ }
{}
30
7
7
13)
5
21) {−15}
5)
29) {−20}
37)
-5-
{ }
−
21
5
7) {30}
{ }
{ }
{ }
20
3
45
23)
2
28
31)
3
39) {18}
15)
Worksheet by Kuta Software LLC
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