Question

[(4x+6):3+20]•3-50=40

Answer 1

Răspuns:

Explicație pas cu pas:

[((4x + 6 ) : 3 + 20 ] × 3 - 50 = 40

[( 4x + 6 ) : 3 + 20 ] × 3 = 40 + 50

[( 4x + 6 ) : 3 + 20 ] × 3 = 90

(4x + 6 ) : 3 + 20 = 90 : 3

(4x + 6 ) : 3 + 20 = 30

(4x + 6 ) : 3 = 30 - 20

(4x + 6 ) : 3 = 10

4x + 6 = 10 × 3

4x+ 6 = 30

4x = 30 - 6

4x = 24

x = 24 : 4

x = 6

Answer 2

[ ( 4 x + 6 ) : 3 + 20 ] × 3 - 50 = 40

[ ( 4 x + 6 ) : 3 + 20 ] × 3 = 40 + 50

[ ( 4 x + 6 ) : 3 + 20 ] × 3 = 90

( 4 x + 6 ) : 3 + 20 = 90 : 3

( 4 x + 6 ) : 3 + 20 = 30

( 4 x + 6 ) : 3 = 30 - 20

( 4 x + 6 ) : 3 = 10

4 x + 6 = 10 × 3

4 x + 6 = 30

4 x = 30 - 6

4 x = 24

x = 24 : 4

x = 6