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Grade
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Date
Questions20
Score

1

2 = 10+5m

2

5x-9 = 10

3

x+2 = 9

4

5x+9 = 5

5

5a+5 = 30

6

3 = 8+10n

7

7 = 8-6b

8

5a6= 3

9

p+6 = 2

10

4s = 4

11

5 = 5+3x

12

10 = 9+5x

13

3 = 2+2x

14

a+3 = 2

15

6m5= 8

16

x+4 = 6

17

x3= 6

18

6x3= 8

19

a6= 5

20

2x7= 7

Answers Key

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1

2 = 10+5m

= m = -1.6

= m = -1.6

Solution

2 = 10+5m

10+5m = 2

5m = 2-10

5m = -8

10+5m = 2

5m = 2-10

5m = -8

m = -85

m = -1.62

5x-9 = 10

= x = 3.8

= x = 3.8

Solution

5x-9 = 10

5x = 10+9

5x = 19

5x = 10+9

5x = 19

x = 195

x = 3.83

x+2 = 9

= x = 7

= x = 7

Solution

x+2 = 9

x = 9-2

x = 7

x = 9-2

x = 7

4

5x+9 = 5

= x = -0.8

= x = -0.8

Solution

5x+9 = 5

5x = 5-9

5x = -4

5x = 5-9

5x = -4

x = -45

x = -0.85

5a+5 = 30

= a = 5

= a = 5

Solution

5a+5 = 30

5a = 30-5

5a = 25

5a = 30-5

5a = 25

a = 255

a = 56

3 = 8+10n

= n = -0.5

= n = -0.5

Solution

3 = 8+10n

8+10n = 3

10n = 3-8

10n = -5

8+10n = 3

10n = 3-8

10n = -5

n = -510

n = -12

n = -0.57

7 = 8-6b

= b = 0.17

= b = 0.17

Solution

7 = 8-6b

8-6b = 7

-6b = 7-8

-6b = -1

8-6b = 7

-6b = 7-8

-6b = -1

b = 16

b = 0.178

5a6= 3

= a = 3.6Solution

5a = 18

5a6= 3

5a = 3x65a = 18

a = 185

a = 3.69

p+6 = 2

= p = -4

= p = -4

Solution

p+6 = 2

p = 2-6

p = -4

p = 2-6

p = -4

10

4s = 4

= s = 1

= s = 1

Solution

4s = 4

s = 44

s = 111

5 = 5+3x

= x = 0

= x = 0

Solution

5 = 5+3x

5+3x = 5

3x = 5-5

3x = 0

x = 0

5+3x = 5

3x = 5-5

3x = 0

x = 0

12

10 = 9+5x

= x = 0.2

= x = 0.2

Solution

10 = 9+5x

9+5x = 10

5x = 10-9

5x = 1

9+5x = 10

5x = 10-9

5x = 1

x = 15

x = 0.213

3 = 2+2x

= x = 0.5

= x = 0.5

Solution

3 = 2+2x

2+2x = 3

2x = 3-2

2x = 1

2+2x = 3

2x = 3-2

2x = 1

x = 12

x = 0.514

a+3 = 2

= a = -1

= a = -1

Solution

a+3 = 2

a = 2-3

a = -1

a = 2-3

a = -1

15

6m5= 8

= m = 6.67Solution

6m = 40

6m5= 8

6m = 8x56m = 40

m = 406

m = 203

m = 6.6716

x+4 = 6

= x = 2

= x = 2

Solution

x+4 = 6

x = 6-4

x = 2

x = 6-4

x = 2

17

x3= 6

= x = 18Solution

x = 18

x3= 6

x = 6x3x = 18

18

6x3= 8

= x = 4Solution

6x = 24

6x3= 8

6x = 8x36x = 24

x = 246

x = 419

a6= 5

= a = 30Solution

a = 30

a6= 5

a = 5x6a = 30

20

2x7= 7

= x = 24.5Solution

2x = 49

2x7= 7

2x = 7x72x = 49

x = 492

x = 24.5
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