Question

Na figura, sendo a// b// c//, calcule o valor de x​

Answer 1

Neste caso resolvemos aplicando o teorema de Tales:

$\frac{2}{3x}=\frac{3}{4x+1}$

$2(4x+1)=3(3x)$

$8x+2=9x$

$8x-9x=-2$

$-x=-2$

$x=2$