Basic Algebra

Which of the following is NOT a true statement about Algebra?

• Algebra is a very important aspect of Mathematics

• Algebra is only used at school.

• Algebra is used in proofs.

• Algebra sometimes uses letters and symbols to represent numbers.

Given the expression 2y + 4, what will be the value if y = 3

• 7

• 8

• 9

• 10

The expression 7q is the same thing as

• 7 + q

• 7 x q

• 7 - q

If b= 5 then 3b + 4 is

• Answer not stated

• 5

• 3b4

• 19

If d= 20 then 5d - 3 is

• 3d - 5

• 20

• 97

• Answer not stated

Simplify

2b + b

• 3b

• b³

• b

• 2b

Simplify

a + a = ?

• a²

• a¹

• 2a

• aa

Simplify

2xy + 3xy

• -xy

• 4y

• 3xy

• 5xy

Simplify

4bcd - bcd

• 3bcd

• 4bcd

• 5bcd

• 11abc

Simplify

15 x (a)

• 15 x (a)

• 15a³

• 15a

• 14