Question

the average of n and 4 is equal to the average of n, 5and 7.find n ​

Answer 1

Answer:

12

Step-by-step explanation:

n+ 4/2 is equal to n+5+7 /3 then n

3(n+4) or 2( n+5+7)

3n + 12 equal 2n + 10+14

3n - 2n equal 10+14-12

n equal to 12