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a fost răspuns

b) (71 x a - 534 : 2) + 124 : 4x3 = 3 731
(32 x a + 513 : 3) - 275: 5 x 4 = 1 359

Răspuns :

(71 × a - 534 ÷ 2) + 124 : 4 × 3 = 3731

(71 × a - 267) + 93 = 3731

71 × a - 267 = 3638

71 × a = 3905

a=55

(32 × a + 513 : 3) - 275 : 5 ×4 =1359

(32 × a + 171) - 220 = 1359

32 × a + 171 = 1579

32 × a = 1408

a = 44

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