Question

Помогите срочно!!!!!!!!!!!! ​

Answer 1

717b -84b + 88c =
= 633b + 88c =
= 633•2 + 88•5 =
= 1266 • 44 = 1706


564b + (a -b) • 26 =
= 564b + 26a - 26b =
= 538b + 26a =
= 538•2 + 26•6 =
= 1076 + 156 = 1232


(d + c) • 25 + 34d =
= 25d + 25c + 34d =
= 59d + 25c =
= 59•7 + 25•5 =
= 413 + 125 = 538


(d + c) • 34 - 42d =
= 34d + 34c - 42d =
= 34c - 8d =
= 34•5 - 8•7 =
= 170 - 56 = 114