Question

15(4y−5)−10(3y−6)=18+3(5y−4)
ПОМОГИТЕЕЕ

Answer 1

Объяснение:

$15(4y - 5) - 10(3y - 6) = 18 + 3(5y - 4) \\ 60y - 75 - 30y + 60 = 18 + 15y - 12 \\ 30y - 15 = 18 + 15y - 12 \\ 30y - 15 = 6 + 15y \\ 30y - 15y = 6 + 15 \\ 15y = 6 + 15 \\ 15y = 21 \\ y = \frac{7}{5} = 1 \frac{2}{5} =1.4$