Algebra 1 - Solving Equations by Cross Multiplication
[Pages:5]Algebra 1
Name___________________________________
Solving Equations by Cross Multiplication
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Solve each proportion.
Date________________ Period____
1) n = 6 5 7
2) 4 = v 8 6
3) 9 = k 7 2
4) 2 = 10 10 x
76 5) =
5 n
49 6) =
9 m
7) b = 10 9 3
8) 3 = 5 6 r
9)
5 =
p
4 5
10)
x
9 =
10 6
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-1-
Worksheet by Kuta Software LLC
11) n + 7 = 4 7 9
13) 8 = a + 1 10 3
8 6
15)
=
m-4 2
17) 8 = 7 3 k-2
19) 3 = x + 2 10 8
62 12) =
9 x-5 14) 4 = p + 6
3 8 35 16) = 7 n-8 18) 7 = x + 3 10 4 73 20) = 8 x-6
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-2-
Worksheet by Kuta Software LLC
21) n + 5 = n 4 6
23) 10 = 6 x x-9
25)
a
6 =
a - 10 9
27) r = 7 r+5 5
29) x + 10 = 5 x 10
22) n + 4 = 6 4n 4
24) 6 = 8 v v+4 10 8
26) = a a + 10
28) x = x + 4 5 7
30) b = b - 1 2 9
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-3-
Worksheet by Kuta Software LLC
31) b - 8 = b - 9
8
2
33) 3 = x - 2 7 x-7
35) x + 2 = 7 x+7 4
37) v + 6 = v + 9
3
8
39) m - 8 = m - 6
5
6
32) 8 = r + 9 3 r+8
34) n - 4 = n + 8
9
2
36) p + 9 = p - 10
10
9
38) 6 = 5 k+3 k-7
40) n + 7 = n - 6
2
9
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-4-
Worksheet by Kuta Software LLC
{ }30
1) 7
{ }25
9) 4
{ }37
17) 8
25) {-20}
{ } 33) - 7 4
Answers to Solving Equations by Cross Multiplication
{ }18
3) 7
{ } 11) - 35 9 { }2 19)
5
{ } 27) - 35 2
{ } 35) - 41 3
{ }30
5) 7
{ }7
13) 5
21) {-15}
29) {-20}
{ } 37) - 21 5
7) {30}
{ }20
15) 3
{ }45
23) 2
{ }28
31) 3
39) {18}
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-5-
Worksheet by Kuta Software LLC
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