Question

Aflati valoarea lui x din egalitatea


8+{[21+(7+x)÷3]×2-10}÷6=15 REPEDEEEE

Answer 1

Răspuns:

x = 8

Explicație pas cu pas:

8+{[21+(7+x)÷3]×2-10}÷6=15

{[21+(7+x)÷3]×2-10}÷6 = 15-8

[21+(7+x)÷3]×2-10 = 7 × 6

[21+(7+x)÷3]×2 = 42 + 10

21+(7+x)÷3 = 52 : 2

21 + (7+x) : 3 = 26

(7+x) : 3 = 26-21

7+x = 5 × 3

7+x = 15

x = 15 -7

x = 8

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