Basic Algebra

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 c= 7 then c - 10 is

• 3

• -3

• Answer not stated

• 17

If d= 20 then 5d - 3 is

• 3d - 5

• 20

• 97

• Answer not stated

Simplify

a + a = ?

• a²

• a¹

• 2a

• aa

Simplify

2b + b

• 3b

• b³

• b

• 2b

Simplify

8ab³ + 4ab³

• 4ab³

• 4³

• 4ab

• 12ab³

Simplify

4bcd - bcd

• 3bcd

• 4bcd

• 5bcd

• 11abc

Simplify

15 x (a)

• 15 x (a)

• 15a³

• 15a

• 14

Simplify

5ab¹ x 5ab¹

• 10ab²

• 25ab²

• ab

• 25ab