Răspuns :
[d-(111×50-883)]+2×71×3=2138
[d-(5550-883)] + 426 = 2138
(d - 4667) = 2138 - 426
d - 4667 = 1712
d = 1712 + 4667
d = 6379
[d-(5550-883)] + 426 = 2138
(d - 4667) = 2138 - 426
d - 4667 = 1712
d = 1712 + 4667
d = 6379
[d - (111 × 50 - 883)] + 2 × 71 × 3 = 2138
(d - 5550 - 883) + 426 = 2138
d - 4667 = 2138 - 426
d - 4667 = 1712
d = 1712 + 4667
d = 6379
(d - 5550 - 883) + 426 = 2138
d - 4667 = 2138 - 426
d - 4667 = 1712
d = 1712 + 4667
d = 6379