Algebra Revision

Simplifying like terms

100

Simplify 3ab - 5 +6ab

9ab-5

200

Simplify 3a - 4b +5a - 2b +5

8a-6b+5

300

Simplify 9xy + 2x - 15xy -5x +6

-6xy -3x + 6

400

Simplify 3a² - 5ab -6a² +8 -17 -9ab

-3a² -14abc-9

500

Expand the bracket and simplify:

3(x²+4) - 3(5x+6)

3x²-15x-6

Substitution

100

Evaluate this expression when x=3 and y =4

5x + y + 8

27

200

Evaluate the following expression when p=4 and t=5

3p² + t

53

300

Evaluate this expression when x=4 and y =7

80-(2xy+y) 

17

400

Evaluate this expression a=9, b =3 and c=5

2b² +  a   - 2c

        ___

          3

11

500

Evaluate the following when x= 3 and y=-4

6(3-y)²+3

297

Multiplying and Dividing

100

Simplify

y x y x y

y³

200

Simplify

4 x a x b x a x 3

12a²b

300

Simplify 56ab/7b

8a

400

Simplify 5b²/b

5b

500

Simplify 12x³y/ -9xy

-4/3 x²

Expanding brackets

100

Expand the following

8(s + 7)

8s + 56

200

Expand the following

10(8-y)

80-10y

300

Expand the following and simplify 3a(3a-6+4)

9a²-18a+12a

9a²-6a

400

Expand the following and simplify

6(k+5) +3(k-2)

9k + 24

500

Expand the following and simplify

(a-5)²

a²-10a+25

Equations

100

Solve the following equation:

y-7=2

y=9

200

Solve the following equation:

5x-2=33

x=7

300

Solve the following equation:

2 + x   = 4

     ___

      7

x=14

400

Solve the following equation by first expanding the bracket:

48=8(x-1)

x=7

500

Solve the following equation by first expanding the bracket:

7(2z +1) + 3= =80

z=5