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Equations with Adding
Equations with Subtracting
Equations with Multiplying
Equations with Dividing
Write the Equation
100

x + 9 = 20

11

100

x − 8 = 10

18

100

4x = 20

5
100

x / 3 = 5

15

100

a number plus 21 equals 45

n + 21 = 45

200

x + 1.6 = 2.4

0.8

200

t − 2.4 = −1

1.4

200

6x = 24

4
200

x / 2 = −7

- 14

200

a number divided by 3 equals 8

n / 3 = 8

300

m + 6 = −4

- 10

300

y − 2 = −8

- 6

300

3x = −24

- 8

300

x / 4 = −12

- 48

300

The difference between a number and 5

k - 5

400

y + 80 = 120

40

400

m − 7.1 = −8.4

- 1.3

400

2x = 11

5.5

400

x / 5 = 1.2

6

400

The quotient of a number and 60  

n / 60

500

t + (− 2.4) = −8

- 5.6

500

x − (3/4) = 1_1/2

2_1/4

500

(2/5)m = 10

25

500

x /(- 5) = 12

- 60

500

Three-fourths of a number

(3/4)n