Question

Как решить уравнение 92-(17-b)=89

Answer 1

92-(17-b)=89
92-17+b=89
b=-92+17+89
b=14

Answer 2

92-(17-b)=89
17-b=92-89
17-b=3
b=17-3
b=14
92-(17-14)=89
89=89