Question

n by 5- 5 by7= 2 by 3.solve the equation

Answer 1

(n/5)-(5/7)=(2/3)
Taking lcm of 5,7=35
(n/5)*(7/7)=7n/35
(5/7)*(5/5)=25/35
(7n/35)-(25/35)=(2/3)
(7n-25)/35=2/3
Cross multiply
3*(7n-25)=2*35
21n-75=70
21n=70+75
21n=145
n=145/21 ans