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Addition

100

5+X=13

x=8

200

14+y =12

y= -2

300

-11 + a = 2

a=13

400

25 + q = 1

q = -24

500

7 + x = 9.5

x = 2.5

Subtraction

100

9 - x = 5

x = 4

200

24-y = 28

y = -4

300

-5 - x = 5

x = -10

400

9- y = -1

y = 10

500

-4 - x = 24

x  = -28

Multiplication

100

3 x = 15

x= 5

200

-2y = 6

y= -3

300

14 x = 42

x = 3

400

-7x = -28

x = 4

500

35y = -35

y = -1

Division

100

x/4= 20

x = 80

200

y/7 = 2

y= 14

300

a/3 = 9

a = 27

400

x/1 = 19

x = 19

500

y/6 = 4

y = 24

Two-Step

100

3x + 9 = 27

x = 6

200

13y + 11 = 50

y = 3

300

x/5  - 6 = 4

x = 50

400

17= 2 +2x

x= 7.5

500

y/9 = 14 - 9

y = 45