Question

5 (14+b)+6b=158 с проверкой

Answer 1

70+5b+6b=158
70+11b=158
11b=158-70
11b=88
b=88:11
b=8

Answer 2

5(14+b)+6b=158
70+5b+6b=158
5b+6b=158-70
11b=88
b=88:11
b=8
Проверка:
5(14+8)+6*8=5*22+48=110+48=158