Question

[80×(a:16-64)×60-3980]:4=3805​

Answer 1

[ 80 × ( a : 16 - 64 ) × 60 - 3.980 ] : 4 = 3.805

[ 80 × ( a : 16 - 64 ) × 60 - 3.980 ] = 3.805 × 4

[ 80 × ( a : 16 - 64 ) × 60 - 3.980 ] = 15.220

[ 80 × ( a : 16 - 64 ) × 60 ] = 15.220 + 3.980

[ 80 × ( a : 16 - 64 ) × 60 ] = 19.200

[ 80 × ( a : 16 - 64 ) ] = 19.200 : 60

[ 80 × ( a : 16 - 64 ) ] = 320

a : 16 - 64 = 320 : 80

a : 16 - 64 = 4

a : 16 = 4 + 64

a : 16 = 68

a = 68 : 16

a = 4, 25

Answer 2

Răspuns:

Explicație pas cu pas:

[ 80 x ( a : 16 -64) x 60 - 3980 ] : 4 = 3805  (*4)

80 x ( a : 16 -64 ) x 60 -3980 = 15220

80 x ( a : 16 -64 ) x60 = 19200    [ : (60x80)]

a: 16 -64 = 4

a: 16 = 68    ( * 16)

a=68 /16

a =17/4