Solve
3x/4−(x−4)/3=5/3

x= 4/5

Step-by-step explanation:
3x/4-(x-4/3)=5/3
9x-(x-4)4/12=5/3
9x-4x+16/12=5/3
5x+16=20
5x=4
x=4/5

Planet earth has a mass of 5.9726x10²⁴ kg.then: 5.9726x10²⁴ kg=100% of the total earth mass.if the water´s mass=5x10-4 % of the total mass, we can solve this problem by the rule of three.5.9726x10²⁴ %*10⁻⁴ %x=(5.9726x10²³ kg)(5*10⁻⁴  %) / 100 %=2.9863x10¹⁹ kganswer:   the mass of the planet´s water would be   2.9863 x 10¹⁹ kg.