Question

Me ayudan porfa es para hoyy ​

Answer 1

Explicación paso a paso:

A) 4 - 5x - 2x + 20 = x

24 - 7x = x

24 = x + 7x

24 = 8x

X= 24/8

X=3

B) 6(x-4)-9x = x + 8

6x - 24-9x = x + 8

-3x -24 = x +8

-24 -8 = x +3x

-32 = 4x

x= - 32/4

X= - 8

C) 2(x-2) + 5(x+8)= x

2x - 4 + 5x + 40 = x

7x +36 = x

7x - x = - 36

6x = - 36

X= - 36/6

X= - 6

D)

$\sqrt[3]{3x + 1} = - 2 \\ 3x + 1 = - 2 ^{ 3} \\ 3x = - 8 - 1 \\ 3x = - 9 \\ x = \frac{ - 9}{3} \\ x = - 3$

E) (30+3x³)÷2 = 3

(30+3x³)= 3 . 2

3x³= 6 - 30

3x³= -24

X³= - 24/3

X³= - 8

$x = \sqrt[3]{ - 8} \\ x = - 2$