Question

Teorema de tales, determine o valor de x

Answer 1

Resposta:

${x+2\over2x+1}={3\over5}\\ \\ 3.(2x+1)=5(x+2)\\ \\ 6x+3=5x+10\\ \\ 6x-5x=10-3\\ \\ \fbox{ x=7 }$

Answer 2

$\large \boxed{ \begin{array}{l} \dfrac{x + 2}{2x + 1} = \dfrac{3}{5} \\ \\ 3.(2x + 1) = 5.(x + 2) \\ 6x + 3 = 5x + 10 \\ 6x - 5x = 10 - 3 \\ \boxed{\boxed{x = 7}}\end{array}}$