Question 679236
1/3x+2/5=4
x/3+2/5=4
(5x+3*2)/3*5=4
(5x+6)/15=4 cross multiply.
5x+6=4*15
5x+6=60
5x=60-6
5x=54
x=54/4 ans.
OR:
1/(3x)+2/5=4
(5+2(3x))/(5*3x)=4
(5+6x)/15x=4
5+6x=4(15x)
5+6x=60x
6x-60x=-5
-54x=-5
x=-5/-54
x=5/54 ans.