Question

4,2*(0,8+у)=8,82

0,2t+1,7t-0,54=0,22

Answer 1

4.2*(0.8+у)=8.82

3.36+4.2у=8.82

4.2у=8.82-3.36

4.2у=5.46

у=5.46:4.2

у=1.3

ОТВЕТ: 1.3

0.2t+1.7t-0.54=0.22

1.9t=0.22+0.54

1.9t=0.76

t=0.76:1.9

t=0.4

ОТВЕТ: 0.4