Question

$5x + 7 = 9x - 10$
$6 + 5.(x + 8) = 12x - 3$
$4.(x + 3) - 6 = x.(2x - 10)$
PFVRRRR ME AJUDEEEM​

Answer 1

Explicação passo-a-passo:

a)

5x + 7 = 9x - 10

5x - 9x = - 10 - 7

- 4x = - 17 . ( - 1)

4x = 17

x = 17/4

b )

6 + 5.(x + 8) = 12x - 3

6 + 5x + 40 = 12x - 3

5x - 12x = - 6 - 3 - 40

- 7x = -9 - 40

- 7x = - 49 .(- 1)

7x = 49

x = 49 / 7

x = 7

4.(x + 3) - 6 = x.(2x - 10) ???????

Mal reformulada

PFVRRRR ME AJUDEEEM