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If 18 +3 = n-7 then what is n
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Aug 25, 2019
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If 18 +3 = n-7 then what is n
Mathematics
middle-school
Emdee
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1. Simplify 18 + 3 to 21. 21 = n - 7
2. Add 7 to both sides. 21 + 7 = n
3. Simplify 21 + 7 to 28. 28 = n
4. Switch sides. n = 28
Fred Yang
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Aug 25, 2019
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3
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Answer:
28
Explanation:
18 + 3 = 21
28 - 7 = 21
Sll
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Aug 31, 2019
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