Math Review

Solving Equations 1

100

y + 2 = 7

y + 2 = 7

y = 7 - 2

y = 5

200

m - 6 = 10

m - 6 = 10

m = 10 + 6

m = 16

300

9 + n = 13

9 + n = 13

n = 13 - 9

n = 4

400

v/5 = 3

v/5 = 3

v = 3 (5)

v = 15

500

4x = 20

4x = 20

x = 20/4

x = 5

Solving Equations 2

100

m + 3 = 10

m + 3 = 10

m = 10 - 3

m = 7

200

n - 5 = 20

n - 5 = 20

n = 20 + 5

n = 25

300

3n = 15

3n = 15

n = 15/3

n = 5

400

h/2 = 6

h/2 = 6

h = 6 (2)

h = 12

500

5x = 30

5x = 30

x = 30/5

x = 6

Solving Equations 3

100

4x + 5 = 13

4x + 5 = 13

4x = 13 - 5

4x = 8

x = 8/4

x = 2

200

2x + 3 = 15

2x + 3 = 15

2x = 15 - 3

2x = 12

x = 6

300

6x + 3 = 33

6x + 3 = 33

6x = 33 -3

x = 30/6

x = 5

400

x/2 - 1 = 6

x/2 - 1 = 6

x/2  = 6 + 1

x/2 = 7

x = 7 (2)

x = 14

500

x/4 - 2 = 3

x/4 - 2 = 3

x/4  = 3 + 2

x/4 = 5

x = 5 (4)

x = 20

Solving Equations 4

100

2x + 1 = 11

2x + 1 = 11

2x = 11 - 1

2x = 10

x = 5

200

3x + 2 = 14

3x + 2 = 14

3x = 14 - 2

3x = 12

x = 12/3

x = 4

300

4f - 2 = 14

4f - 2 = 14

4f = 14 + 2

4f = 16

f = 16/4

f = 4

400

x/2 - 4 = 6

x/2 - 4 = 6

x/2 = 6 + 4

x/2 = 10

x = 10 (2)

x = 20

500

x/5  - 1 = 2

x/5  - 1 = 2

x/5 = 2 + 1

x/5 = 3

x = 3 (5)

x = 15

Solving Equations 5

100

-7(3k+3)=126

k = -7

200

-44 = 4(1 - 4x)

x = 3

300

4(3x + 1) = -44

x = -4

400

10 (2 + 3z) = 110

z = 3

500

-5(2 + 5x) = -110

x = 4