Math Semester 1 Exam

What question are we trying to answer in Algebra?

• What is the number?

• What is X?

• What is for lunch?

In Algebra, a letter is a number in disguise.

• True

• False

You can have letters and numbers in the same equation or expression.

• True

• False

Equations must be balanced.

• True

• False

If I do something to one side of the equation, I DON'T have to do it to the other side.

• True

• False

Balance the equation:

8 + x = 12

x = ?

• 2

• 3

• 4

Balance the equation:

10 + x + x = 16

What is x?

• 3

• 4

• 5

Balance the equation:

18 + x + x + x + x = 22

What is x?

• 3

• 2

• 1

Balance the equation:

12 + x + x + x = 15

What is x?

• 3

• 1

• 2

Balance the equation:

15 + x = 20

What is x?

• 5

• 4

• 3