Pre Algebra Review

Solving for x

100

4x = 16

4

200

x² = 64

x= 8        x= -8

300

2(x+4) = 10

1

400

4(x-3) = 5(x+2)

-22

500

x(x+2)=8

x= 2      x= -4

Collect like terms

100

3x-6y+2x+y

5x-5y

200

m x m

m^2

300

5ab-3a+4b-2ba

3ab-3a+4b

400

Best joke wins

Craig's joke wins

500

((((a+b)-a+b)+a-b)-a+b)

b

Order of operations

100

12 ÷ 2x

When x = 3

18

200

Simplify the following expression:

5

https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

300

3 + 4² * (3 + 2)

83

400

45

500

30

Expand

100

-3(2x-5)

-6x+15

200

4x(3x-8)

12x²-32x

300

3ab²(4b-5a)

12ab³-15a²b²

400

2(x+5)-(x-4)

x+14

500

What letter does not appear in any of the USA state names?

Q

Factorise

100

14x-3

14x-3

200

-6a³-4a

-2a(3a²+2)

300

16x⁵b⁶-12x⁴

4x⁴(4xb⁶-3)

400

2/3+3/4

17/12

500

1/3 / 3/5

5/9