One Variable 1
One Variable 2
Two or More of Same Variable 1
Two or More of Same Variable 2
2 or More Variables
100

3 + c 

c = 4

7

100

a - 40

a = 94

54

100

a + a 

a = 8

16

100

x + x + x - x 

x = 5

10

100

a + b

 

a = 2 

b = 6

8

200

a - 7

a = 10

3

200

x + 8 

x = 40 

48

200
5 + b + b


b = 11

27

200

m + m + m+ m

m = 12

48

200

m + m - n 

m = 10 

n = 4

16

300

m + 27 

m = 11

38

300

270 - m 

m = 70

200

300

c + c + c

c = 15

45

300

n  + n + n - n 

n = 26

52

300

x + y - x 

x = 25 

y = 17

17

400

72 - v

v = 38

34

400

675 + a

a = 485

1,160

400

m + 10 - m 

m = 20

10

400

z + z + z 

z =120

360

400

60 + a + a - b

a = 20 

b = 5

95

500

489 + x 

x = 696

1,185

500

1,000 + b 

b = 1,000

2,000

500
x + x + x


x = 42

126

500

a + a 

a = 370

740

500

a + b + c - d 

a = 10 

b = 20 

c = 5 

d = 30

5

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