Suzee123
Suzee123
30-11-2018
Mathematics
contestada
If 18 +3 = n-7 then what is n
Respuesta :
xxxsanyeo
xxxsanyeo
30-11-2018
Answer:
28
Step-by-step explanation:
18 + 3 = 21
28 - 7 = 21
Answer Link
shaunalab
shaunalab
30-11-2018
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
Answer Link
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