Question

7 + { 2 • [ 14 + ( 5 + x ) : 6 ] — 5 } : 9 = 10

Answer 1

Răspuns:

x = 7

Explicație pas cu pas:

7+{ 2 • [ 14 + ( 5 + x ) : 6 ] - 5} : 9 = 10

{2•[14 + (5 + x) : 6] - 5} : 9 = 10 - 7

{2•[14 + (5 + x) : 6] - 5} : 9 = 3

2•[14 + (5 + x) : 6] - 5 = 9 • 3

2•[14 + (5 + x) : 6] - 5 = 27

2•[14 + (5 + x) : 6] = 5 + 27

2•[14 + (5 + x) : 6] = 32

14 + (5 + x) : 6 = 32 : 2

14 + (5 + x) : 6 = 16

(5 + x) : 6 = 16-14

(5 + x) : 6 = 2

5 + x = 6 • 2

5 + x = 12

x= 12-5

x= 7