Question

ПОМОГИТЕ СРОЧНО!!!!!!!!!!!!!!!!!!!​

Answer 1

Ответ:

1) $-2\frac{11}{15\\}$

2) $-159\frac{3}{7}$

Объяснение:

1)

$0,6(4x-12)-0,4(5x-7)=2,4x-7,2-2x+2,8=0,4x-4,4=0,4(x-11)=0,4(\frac{25}{6}-11)=\frac{4}{10}*(\frac{25}{6}-\frac{66}{11})=(-\frac{41}{6})*\frac{4}{10}=-\frac{41}{15}=-2\frac{11}{15}$

2)

$\frac{36}{7}(y-7)-\frac{59}{7}(14-y)=\frac{36}{7}y-36-118+\frac{59}{7}y=y(\frac{36}{7}+\frac{59}{7})-154=y\frac{95}{7}-154=(-\frac{4}{10}*\frac{95}{7})=-\frac{380}{70}-154= -\frac{380}{70}-\frac{10780}{70}=-\frac{11160}{70}=-159\frac{3}{7}$