Question

0.6(4x-12)-0.4(5x-7) при x=1/46

Answer 1

Ответ:

Объяснение:

0.6(4x-12)-0.4(5X-7) =

3/5 x 48 - 2/5 (5X - 7)=

1/5 (3 x 48 - 2(5X - 7)) =

1/5 x (144 - 10X +14) =

1/5 x (158 - 10X) =

1/5 x 2(79 -5X) =

2 x 1/5(79 - 5X) =

2/5(79 - 5X) =

2/5(79 - 5/46) =

2/5 x 3629/46 =

1/5 x 3629/23 =

3629/115