Writing Expressions
Writing "Simple" Equations
Writing "Complex" Equations
100

Write an expression.

A number decreased by 12

x-12

100

Write an equation. 

A number decreased by 5 is 12.

x-5=12

100

Write an equation. 

Five times a number increased by 8 is the same as 9 times the number decreased by 10. 

5x+8=9x-10

200

Write an expression.

Four times a number increased by 9

4x+9

200

Write an equation. 

Twice a number increased by 8 is 20. 

2x+8=20

200

Write an equation. 

Eight less that 5 times a number is the same as 6 more than twice the number. 

5x-8=2x+6

300

Write an expression. 

Seven less than 8 times a number

8x-7

300

Write an equation.

The quotient of a number and 9 decreased by 5 is 15.

x/9-5=15

300

Write an equation. 

Five times the sum of a number and 7 is 21.

5(x+7)=21

400

Write an expression. 

9 more than the quotient of a number and 3

x/3+9

400

Write an equation. 

Three-fourths of a number increased by 8 is -4. 

3/4x+8=-4

400

Write an equation. 

Twice the difference of a number and 5 is the same as 7 more than 3 times the number. 

2(x-5)=3x+7

500

Write an expression. 

Eight times the difference of a number and 5

8(x-5)

500

Write an equation. 

27 is 12 more than 5 times a number.

27=5x+12

500

Six times the sum of a number and -1 is the same as 3 times the difference of the number and 3.

6(x+(-1))=3(x-3)or 6(x-1)=3(x-3)