writting and solving equations

Multiplication

100

5x+9=17

x=3

200

4a=20

a=5

300

20=5[s-3]

s=7

400

x=-5 *62

x=-450

500

6x²+8x

3x+4

Division

100

5 divided by 1 equals 

5 divided by 1 equals 5

200

20 divided by o equals 

=5

300

2/5x - 5= 6/5

10 1/5

400

p divided by 7 = 3

p=21

500

120 divided by 20 equals 

120 divided by 20 equals 6

Addition

100

3x+5= 14 

x=?

x=3

200

.5t+7=13

T=12

300

-3x+10=26

x=108

400

2/3 +4 =-2

-9

500

x/55+15=-65

5.62

Subtraction

100

2x - 3 =?

-7

200

b-7=8

b=15

300

.5x - 3/4 =-4

6^1/2

400

6x - 18=33

8^1/2

500

16-2h=0

h=8

Word problems

100

A rectangular garden has a perimeter of 42 meters. The length is 5 meters longer than the width. Find the length and width of the garden.

width=8

length=13

200

Twice a number is 500 more than six times the number. What is the number

-125

300

Three children each contributed toward a birthday present for their mother. The oldest contributed three times as much as the youngest, while the second oldest contributed 50 cents more than the youngest. If the present costs $10.50, how much did each contribute?

oldest:6

youngest:2

middle:2.50

400

TriCity Taxi Company charges $3 for the first mile and $0.20 for every tenth of a mile thereafter. If your trip is measured in tenths of a mile, how far can you ride in a TriCity Taxi for $12

The distance one can travel in the taxi for $12 is 5.5 miles

500

One weekend Bill earned 3 times as much as Jim. Tom earned $5 more than Jim. In all, they earned $60. How much did each earn

jim earned $11

bill earned 33

tom earned 16