Addition Equations

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Addition Equations
Addition Equations
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Example 3-1a
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Example 3-1b
To check your solution, replace x with 7 in the
original equation.
The sentence is true.
Answer The solution is 7.
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Example 3-1c
Answer 4
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Example 3-2a
Answer The solution is 1.
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Example 3-2b
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Subtraction Equations
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Example 3-3a
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Example 3-3b
Answer 7
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Example 3-4d
Solve the equation.
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Example 3-5a
Read the Test Item To find the value of x, solve
the equation.
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Example 3-5b
Solve the Test Item
Answer A
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Example 3-5c
Answer B