2700:(x-12)=90решите уравнения

Question

2700:(x-12)=90
решите уравнения

Answer 1

2700:(×-12)=90
×-12=2700:90
×-12=30
×=30+12
×=42
2700:(42-12)=90
90=90

Answer 2

X-12=2700*90
X=243012