12х+2=0
1-27х=0
0=16-1/3х
1/5х+2=0
Найти корень

1). 12х+2=012х= -2х= -2÷12х= -1/6.2). 1-27х=0-27х = -1х= 1/27.3). 16-1/3х=0-1/3х= -16х= -16÷(-1/3)х= -16×(-3)х= 48.4). 1/5х+2=01/5х= -2х= -2÷1/5х= -2×5х= -10.