1) 7,429x+9,571x=4,25; x= . 2) 28x-x=0,729; x= . 3) 1,5x-0,78x=1,8; x= . 4) 3,6y+2,8y=22,4; y= .

Задание

Реши уравнения

\(7,429x+9,571x=4,25\) ;

\(x=\) [ ].

\(28x-x=0,729\) ;

\(x=\) [ ].

\(1,5x-0,78x=1,8\) ;

\(x=\) [ ].

\(3,6y+2,8y=22,4\) ;

\(y=\) [ ].