Find the Missing Numbers in the Equation
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• Introduction
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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
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Solve the following equation to find x:

x + 1 = 8

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• Question 2
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Solve the following equation to find y:

y + 4 = 24

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• Question 3
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Solve the following equation to find x:

x - 1 = 8

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• Question 4
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Solve the following equation to find y:

8y = 72

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• Question 5
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Solve the following equation to find a:

a ÷ 4 = 8

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• Question 6
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Solve the following equation to find x:

x - 7 = 80

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• Question 7
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Solve the following equation to find x:

15 + x = 18

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• Question 8
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Solve the following equation to find y:

15 - y = 8

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• Question 9
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Solve the following equation to find y:

15 ÷ y = 5

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• Question 10
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Solve the following equation to find y:

5y = 15

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Progress