А)21,71+4,06у=27,8 б)5,09х3,84х=1

Question

А)21,71+4,06у=27,8 б)5,09х3,84х=1

Answer 1

А) 21,71 + 4,06y = 27.8
     4.06y = 27.8 -21.71
      4.06y = 6.09
       y = 6.09 /4.06
           y = 1.5