Question

X+2 sobre 3-X igual a 4 sobre 1​

Answer 1

Resposta:

x+2 = 4

3-x 1

x+2 = 4 , x≠3

3-x 1

x+2 = 4

3-x

x+2 = 4 (3-x)

x + 2 = 12 - 4x

x + 4x = 12 - 2

5x = 10

x=2 x≠3

x=2

Answer 2

$\Large\boxed{ \boxed{\begin{array}{l}\sf\dfrac{x+2}{3-x} = \dfrac{4}{1}\\\\\sf x + 2=4(3 - x) \\ \sf x + 2 = 12 - 4x \\ \sf x + 4x = 12 - 2 \\ \sf 5x = 10 \\ \sf x = \dfrac{10}{5} \\ \\ \sf x = 2\end{array}}}$