Question

calculati termenul necunoscut 25187-b=8572. b+a=34519. a-c=13859

Answer 1

$25187 - b = 8572 \\ \\ b = 25187 - 8572 \\ \\ b = 16615 \\ \\ b + a = 34519 \\ \\ 16615 + a = 34519 \\ \\ a = 34519 - 16615 \\ \\ a = 17904 \\ \\ a - c = 13859 \\ \\ 17904 - c = 13859 \\ \\ c = 17904 - 13859 \\ \\ c = 4045$