Question

ME AJUDEM POR FAVOR!!!! PRECISO DOS CÁLCULOS!!!!!
1) 7x - 4 - x = -7x + 8 - 3x

2) -x -5 + 4x = -7x + 6x + 15

3) 2 - 4x = 32 - 18x + 12

4) 2x - 1 = -3 + x + 4

5) 4x - 4 - 5x = -6 + 90

Answer 1

Resposta:

1) 7x - 4 - x = -7x + 8 - 3x

7x - x + 7x + 3x = + 8 + 4

16x = 12

x = 12/16

x = 0,75

2) -x -5 + 4x = -7x + 6x + 15

-x +4x + 7x -6x = 15 + 5

4x = 20

x = 20/4

x = 5

3) 2 - 4x = 32 - 18x + 12

- 4x + 18x = 32 + 12 - 2

14x = 42

x = 42/14

x = 3

4) 2x - 1 = -3 + x + 4

2x - x = -3 + 4 + 1

x = 2

5) 4x - 4 - 5x = -6 + 90

4x - 5x = -6 + 90 + 4

-x = 88 . (-1)

x = -88

ESPERO TER AJUDADO♡☆