Melikova05102003 1) 3*(-х)+51=6-12
3*х+51=6+(-12)
3*х+51=-(12-6)
3*х+51=-6
3*х=-6-51
3*х=-6+(-51)
3*х=-(6+51)
3*х=-57
Х=-57:3
Х=-57*(-3)
Х=171

kindgirl999 Вот уравнение ! )))))))