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Find the Missing Numbers in the Equation
• Introduction

In this worksheet, you must find the missing numbers in the equation.

In algebra, we use a letter to represent the unknown number.

Examples:

1 + x = 4.   x =

4y = 24.   y =

x = 4 - 1 = 3

y = 24 ÷ 4 = 6

• Question 1

Solve the following equation to find x:

x + 1 = 8

(Just write the final answer in the box below)

• Question 2

Solve the following equation to find y:

y + 4 = 24

(Just write the final answer in the box below)

• Question 3

Solve the following equation to find x:

x - 1 = 8

(Just write the final answer in the box below)

• Question 4

Solve the following equation to find y:

8y = 72

(Just write the final answer in the box below)

• Question 5

Solve the following equation to find a:

a ÷ 4 = 8

(Just write the final answer in the box below)

• Question 6

Solve the following equation to find x:

x - 7 = 80

(Just write the final answer in the box below)

• Question 7

Solve the following equation to find x:

15 + x = 18

(Just write the final answer in the box below)

• Question 8

Solve the following equation to find y:

15 - y = 8

(Just write the final answer in the box below)

• Question 9

Solve the following equation to find y:

15 ÷ y = 5

(Just write the final answer in the box below)

• Question 10