Question

2)0,3(6-3y) = 4,5-0,8(у -9).
ПЖЖЖЖ помогите ​

Answer 1

Ответ:

$0.3(6 - 3y) = 4.5 - 0.8(y - 9) \\ 1.8 - 0.9y = 4.5 - 0.8y + 7.2 \\ 1.8 - 0.9y = 11.7 - 0.8y \\ - 0.9y + 0.8 = 11.7 - 1.8 \\ - 0.1y = 9.9 \\y = \frac{9.9}{ - 0.1} \\ y = - 99$

Answer 2

Ответ:

-99

Пошаговое объяснение:

$0,3(6-3y)=4,5-0,8(y-9)\\\\1,8-0,9y=4,5-0,8y+7,2\\\\-0,9y+0,8y=4,5+7,2-1,8\\\\-0,1y=9,9\\\\y=\frac{9,9}{-0,1} \\\\y=-99$