Question

Напишите ответ (y+1)х18=36+12х(y+1) 

Answer 1

18y+18=36+12xy+12
18y-12xy=30
18y-12xy-30=0
y(18-12x)-30=0
y-30=0 или 18-12х=0
у=30.............12х=18
........................х=18/12