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artcher [175]
3 years ago
11

4/n+9=2/7 adsdwddddfdsfefsef

Mathematics
2 answers:
Jet001 [13]3 years ago
6 0

Answer:

<h2>n = 5</h2><h2 />

Step-by-step explanation:

<u>  4    </u>  = <u> 2 </u>

n + 9      7

cross multiply:

7 (4) = 2n + 2 (9)

simplify:

28 = 2n + 18

28 - 18 = 2n

simplify:

n =<u> 10 </u>

      2

n = 5

beks73 [17]3 years ago
4 0

Answer: n= −28 /61

Step-by-step explanation:

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