\"\"

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The replacement set is \"\". \ \

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The equation is 7a = 49

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Replace a in 7a = 49 with each value in the replacement set and check whether

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the equation is true.

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
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a

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            7a = 49

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True or false

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7

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   \"\"

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True

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42

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   \"\"

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False

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343

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\"\"

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False

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Since a = 7 makes the equation true, the solution of  7a = 49 is 7.\"\"

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The solution set is {7}.