40 32+5·3 = ٱ +32 54:9+ٱ=6+9·8 8·7+28=28+ٱ 81-7·4=9·9-ٱ ٱ:(10-4)=72:8 42:7-ٱ=ٱ-3

1. 32 + 5 × 3 = 15 + 32
   32 + 5 × 3 = 47
2. 54 : 9 + = 6 + 9 × 8
   6 + = 6 + 72
   6 + = 78
   = 78 - 6
   54 : 9 + 72 = 6 + 9 × 8
3. 8 × 7 + 28 = 28 +
   56 + 28 = 28 +
   84 = 28 +
   = 84 - 28
   8 × 7 + 28 = 28 + 56
4. 81 - 7 × 4 = 9 × 9 -
   81 - 28 = 81 -
   53 = 81 -
   = 81 - 53
   81 - 7 × 4 = 9 × 9 - 28
5. :(10 - 4) = 72 : 8
   :(6) = 9
   = 9 × 6
   54 : (10 - 4) = 72 : 8
6. 42 : 7 - = - 3
   6 - = - 3
   + = 6 + 3
   2 = 9
   = 9 : 2
   = 4,5
   6 - 4,5 = 4,5 - 3

Ответ: 47; 72; 56; 28; 54; 4,5.