Автор - tikto23

3^8*3^5/3^9
И
2 - 3(2x + 2) = 5 - 4x

Ответ

Автор - MAN4PLAY228

1.3^8*3^5/3^9=3^4

2.2 - 3(2x + 2) = 5 - 4x

x=-4,5

Ответ

Автор - millka000054

 frac{ {3}^{8} times  {3}^{5}  }{ {3}^{9} }  =  {3}^{8}  times  {3}^{5}  div  {3}^{9}  =  {3}^{8 + 5 - 9}  =  {3}^{4}  = 81.

2 - 3 ( 2х + 2 ) = 5 - 4х

2 - 6х - 6 = 5 - 4х

-6х + 4х = 5 - 2 + 6

-2х = 9

х = 9 ÷ (-2)

х = -4,5.

Ответ : х = -4,5.

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