Question

n/2+n/5=7
please anwer​

Answer 1

Answer:

n/2+n/5=7

5n/10+2n/10=7

7n\10=7

7n=7×10

7n=70

n=10

Answer 2

Answer:

n/2+n/5=7

L.C.M. of 2and5 is 10

5n+2n/10=7

7n=7×10

n=7/7×10

n=10

That is right Answer.......