Question

Determine o Valor de X ​

Answer 1

Resposta:

Explicação passo-a-passo:

Basta multiplicar os meios e os extremos

$\dfrac{7}{x+3}=\dfrac{4}{2x-2}\\\\\\7.(2x-2)=4.(x+3)\\\\14x-14=4x+12\\\\14x-4x=12+14\\\\10x=26\\\\x=\dfrac{26}{10}\\\\\\x=\dfrac{13}{5}$