Question

7+{2x[14+(5+X)÷6]-5}÷9=10? Afla ecuatia.

Answer 1

Răspuns

Explicație pas cu pas:

7+{2x[14+(5+X)÷6]-5}÷9=10

{2x[14+(5+X)÷6]-5}÷9=10-7

{2x[14+(5+X)÷6]-5}÷9=3

2x[14+(5+X)÷6]-5=3*9

2x[14+(5+X)÷6]-5=27

2x[14+(5+X)÷6]=27+5

2x[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=2*6

5+X=12

X=12-5

X=7

Answer 2

Răspuns

Explicație pas cu pas:

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

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

{ 2 x [ 14 + ( 5 + X ) : 6 ] - 5 } : 9 = 3

2 x [ 14 + ( 5 + X ) : 6 ] - 5 = 3 × 9

2 x [ 14 + ( 5 + X ) : 6 ] - 5 = 27

2 x [ 14 + ( 5 + X ) : 6 ] = 27 + 5

2 x [ 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 = 2 × 6

5 + X = 12

X = 12 - 5

X = 7 → numarul, aflat prin metoda mersului invers