Question

(a×27+144:12:6+18-6):5=549

Answer 1

(27a + 12 : 6 +12 ) : 5 = 549
(27a + 2+12 ) : 5 = 549
(27a + 14 ) : 5 = 549
27a : 5 + 14 : 5 = 549
5,4 a + 2,8 = 549
5,4 a = 549 - 2,8
5,4 a = 546,2
a = 546,2 supra 5,4
a = 101,148. . .

Answer 2

(27a + 14)/5 = 549
27a + 14 = 549*5
27a + 14 = 2745
27a = 2745-14
27a = 2731
a = 2731/27
a = 101,14