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When the sum of a number and 3 is subtracted from 13 the result is 7
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When the sum of a number and 3 is subtracted from 13 the result is 7

User Nupanick
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2 Answers

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the sum of the number is 3. 7+3=10
13-10=3.
User Michalsrb
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4 votes
13 - (n + 3) = 7
13 - n - 3 = 7
10 - n = 7
10 - n - 7 = 0
3 - n = 0
n = 3
User Kerissa
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8.2k points
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