Question

Решите уравнение:4,505:(0,4y-0,02)+2,29=3,54

Answer 1

$(0.4y-0.02)+2.29=3.54 \\ 0.4y - 0.02 + 2.29 = 3.54 \\ 0.4y + 2.27 = 3.54 \\ 0.4y = 3.54 - 2.27 \\ 0.4y = 1.27 \\ y = \frac{127}{40} = 3 \frac{7}{40} = 3.175$

Answer 2

4,505:(0,4у-0,02)=3,54-2,29

4,505:(0,4у-0,02)=1,25

0,4у-0,02=4,505:1,25

0,4у-0,02=3,604

0.4у=3,624

у=9,06