Question

Determine o valor de x nas figuras abaixo:

Answer 1

$\dfrac{4x + 1}{x + 2} = \dfrac{16 \div 2}{18 \div 2} \\ \\ \dfrac{4x + 1}{x + 2} = \dfrac{8}{9} \\ \\ 9(4x + 1) = 8(x + 2) \\ \\ 36x + 9 = 8x + 16 \\ \\ 36x - 8x = 16 - 9 \\ \\ 28x = 7 \\ \\ x = \dfrac{7 \div 7}{28 \div 7} \\ \\ \green{x = \dfrac{1}{4} }$

Bons Estudos!