Y7 AC9 Algebraic Expressions

Simplify (Revision)

100

12q-4q

8q

200

2 xx c xx 6 xx n

12cn

300

a+a+a+c+c

3a+2c

400

13-:(axx2)

13/(2a)

500

What is the expanded form of:

7e^3

7xxexxexxe

Substitution (Simple)

100

Substitute m=5 to find

3+m 

=8

200

Substitute f=5 to find

7-f

=2

300

Substitute x=5 to find

2x

=10

400

Substitute e=11 to find

88/e

=8

500

Substitute y=5 to find

3y-1

=14

Simplify (Like Terms)

100

Simplify 

4k+7k

11k

200

Simplify 

7-2x-3

4-2x

300

Simplify 

2xx4axx3b

24ab

400

Simplify 

(60w)/15

4w

500

Simplify 

(-56mn)/(8m^2)

(-7n)/m

Solving Equations

100

Find the value of g if

2+g=10

g=8

200

Find the value of p if

p-9=20

p=29

300

Find the value of y if

3y+2=5

y=1

400

Find the value of c if

8c-4=12

c=2

500

Find the value of c if

c/2-4=6

c=20

Substitution (Tricky)

100

If x=5 and y=6 then what is the value of 

2x-y

4

200

If d=10, e= -3, and f=5 what is the value of 

(de)/2-3f

-30

300

If n=6, evaluate 

(n^2+4)/2

20

400

The formula for the area of a triangle is below. Find the area of the triangle with base of 12m and height of 7m.

A=1/2bh

42m²

500

The formula for converting Celsius temperatures to Fahrenheit is below. What is 25^oC in Fahrenheit?

F=9/5C+32

77^oF