Question

[80 x (a : 16-64) x 60 - 3 980] : 4 = 3 805
va rog repede​

Answer 1

Răspuns:

Explicație pas cu pas:

[80×(a÷16-64)×60-3980]÷4=3805

80×(a÷16-64)×60-3980=3805×4

80×(a÷16-64)×60-3980=15220

80×(a÷16-64)×60=15220+3980

80×(a÷16-64)×60=19200

80×(a÷16-64)=19200÷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=1088

verificare

[80×(1088÷16-64)×60-3980]÷4=3805

[80×(68-64)×60-3980]÷4=3805

(80×4×60-3980)÷4=3805

(320×60-3980)÷4=3805

(19200-3980)÷4=3805

15220÷4=3805

Answer 2

Răspuns:

Explicație pas cu pas:

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

80 × ( a : 16 - 64 ) × 60 - 3980 = 3805 × 4

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

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

80 × ( a : 16 - 64 ) × 60 = 19200

80 × ( a : 16 - 64 ) = 19200 : 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 = 1088