Question

Aflați nr necunoscut:

[140+32×(a:132)+132]:132=132

[13+13×(a:13)+13]:13=13

[(a:175+970)-6]:5-280:4=140

[(14350+n):6+8]:12=3700​

Answer 1

Răspuns:

Explicație pas cu pas:

[140+32×(a:132)+132]:132=132

140+32×(a:132)+132 = 132×132 = 17424

32×(a:132) = 17424 - 132 - 140 = 17152

a : 132 = 17152 : 32 = 536

a = 132*536 = 70752

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[13+13×(a:13)+13]:13=13

13+13×(a:13)+13 = 13×13 = 169

13×(a:13) = 169 - 13 - 13 = 143

a : 13 = 143 : 13 = 11

a = 13×11 = 143

________________

[(a:175+970)-6]:5-280:4=140

 [(a:175+970)-6]:5-70=140

 [(a:175+970)-6]:5 = 140 + 70 = 210

(a:175+970)-6 = 5×210 = 1050

a:175+970 = 1050 + 6 = 1056

a : 175 = 1056 - 970 = 86

a = 175×86 = 15050

____________________

[(14350+n):6+8]:12=3700​

(14350+n):6+8 = 3700×12 = 44400

(14350+n):6 = 44400 - 8 = 44392

14350+n = 6×44392 = 266352

n = 266352 - 14350 = 252002