Question

1) Observe o exemplo: A) 3(x +2) = 24 3x + 6 = 24 3x = 24 – 6 3x = 18 X = 18 3 X = 6 Agora resolva: a) 2(3x-1)= 34 b) 2.(6x + 3) = 126 c) 5 (x - 2) = 40

Answer 1

Resposta:

a) 2 (3x - 1) = 34

6x - 2 = 34

6x = 34 + 2

6x = 36

$x = \frac{36}{6}$

x = 6

b) 2 (6x + 3) = 126

12x + 6 = 126

12x = 126 - 6

12x = 120

$x = \frac{120}{12}$

x = 10

c) 5 (x - 2) = 40

5x - 10 = 40

5x = 40 + 10

5x = 50

$x = \frac{50}{5}$

x = 10

Espero ter ajudado! <3