Ch. 4 Expressions and Equations - 7th

Write Expressions

100

The sum of a number and 5

n + 5

200

Six inches less than her height

h - 6

300

Eight dollars more than m

8 + m

400

Four times the number of people

4 x p

500

Twice as many apples

2 x a

Write Equations

100

Ten years older than Mrs. E's age is 47

10 + E = 47

200

Four less than a number is 19

x - 4 = 19

300

The quotient of 56 and a number is 14

56 / z = 14

400

Eight times the number of students is 64

8 x s = 64

500

24 pencils split among some students is 2

24 / s = 2

Solve Addition Equations

100

x + 5 = 8

x = 3

200

y + 4 = 12

y = 8

300

a + 8 = 5

a = -3

400

p + 9 = -4

p = -13

500

d + 23 = 14

d = -9

Solve Subtraction Equations

100

s - 8 = 15

s = 23

200

t - 16 = 27

t = 38

300

n - 1 = -3

n = -2

400

w - 9 = 28

w = 37

500

g - 13 = -22

g = -9

Solve Multiplication Equations

100

7c = 28

c = 4

200

9y = 45

y = 5

300

-2h = 24

h = -12

400

10y = -90

y = -9

500

-11f = -121

f = 11

Solve 2-Step Equations

100

3y - 12 = 6

y = 6

200

6x - 4 = 20

x = 4

300

2x + 5 = 3

x = -1

400

5m + 6 = -4

m = -2

500

3n - 20 = -5

n = 5