Question

4) Determine o valor de x:
X-1
X+3
D
E
2
3
B
С​

Answer 1

Resposta:

$\frac{x - 1}{2} = \frac{x + 3}{3} \\ 3(x - 1) = 2(x + 3) \\ 3x - 3 = 2x + 9 \\ 3x - 2x = 9 + 3 \\ x = 12$

x-1= 12-1 =11

x+3= 12+3=15