Question

8 x - ( x + 3 )= 11​

Answer 1

8x - (x + 3) = 11
8x - x + 3 = 11
7x + 3 = 11
7x = 11 - 3
7x = 8
x = 8/7
x = 1.14

Answer 2

Explicação passo-a-passo:

$\sf 8x - (x + 3) = 11$

$\sf 8x + (-1\cdot x) + (-1\cdot 3) = 11$

$\sf 8x - x - 3 = 11$

$\sf 7x = 11 + 3$

$\sf 7x = 14$

$\sf x = \dfrac{14}{7}$

$\boxed{\sf x = 2}$