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Addition
Subtraction
Multiplication
Division
Fractional Coefficients
100

x + 5 = 9

x = 4

100

x - 5 = -7

x = -2

100

5x = 60

x = 12

100

x ÷ 15 = 3

x = 45

100

1/2(x) = 4

x = 8

200

-21 + x = -34

x = -13

200

x - 45 = 7

x = 52

200

3x = -33

x = -11

200

x ÷ 3 = -20

x = -60

200

-1/3(x) = 4

x = -12


300

x + 117 = 72

x = - 45

300

x - 12 = 23

x = 35

300

-60x = 600

x = -10

300

x ÷ 5 = 15


x = 75

300

-2 = 2/3(x)

x = -3

400

1/5 + x = 1

answer using fractions

x = 4/5

400

x - 1/2 = 4

answer using fractions 

x = 4 1/2

400

5x = 1

answer using decimals

x = 0.2

400

x ÷ -3 = 8


x = -24

400

2 1/2(x) = 25

x = 10

500

3/4 + x = 2/5

answer using fractions

x = -7/20

500

x - 9/8 = 1/4

answer using fractions

x = 11/8 or 1 3/8

500

-5x = -20

x = 4

500

x ÷ -5 = -3


x = 15

500

-4 2/5(x) = 11

x = -5/2