Question

6. Aflați numărul natural x din proporţia
50/27+x=[0,8(3)] la puterea a 2a

Answer 1

50/27+x= (83-8/90) la puterea a 2a

50/27+x= 75/90 la puterea a 2 a

50/27+x=15/18 la puterea a 2 a

50/27+x=5/6 la puterea a 2a

50/27+x= 25/36

x=25/36-50/27

x=25/9×4-50/9×3

x=25×3/9×4×3-50×4/9×3×4

x=75-200/108

x= -125/108