Question

a) X-3/2 = 3 ( 7-X )

ME AJUDEM​

Answer 1

Resposta:

$\frac{x - 3}{2} = 3 \times (7 - x) \\ \frac{x - 3}{2} = 21 - 3x \\ x - 3 = 2 \times (21 - 3x) \\ x - 3 = 42 - 6x \\ x + 6x = 42 + 3 \\ 7x = 45 \\ x = \frac{45}{7}$