Question

4. Aflați x din 19.000 --7 * (x+ 27^30: 27^28)=219

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Answer 1

Răspuns:

19000-7*(x+27^{30}27

30

:27^{28}27

28

)=219

190000-7*(x+27^{2}27

2

)=219

7*(x+27^{2}27

2

)=190000-219

7*(x+27²)=18781

x+27²=18781:7

x+27²=2683

x=2683-729

x=1954

Answer 2

Răspuns:

Explicație pas cu pas:

7 * (x+ 27^30: 27^28)=19000 - 219

x+ 27^30: 27^28=18781 : 7

x+ 27^30: 27^28=2683

x+3⁹⁰ : 3⁸⁴ = 2683

x+3⁹⁰⁻⁸⁴ = 2683

x+3⁶ = 2683

x+729 = 2683

x = 2683 - 729

x = 1954