Question

calcule x e y de modo que os paress ordenados sejam iguais
 (4x-3, 2y+1) =(5,7)

Answer 1

$4x-3=5\Longrightarrow 4x=5+3\Longrightarrow4x=8\Longrightarrow x=\dfrac{8}{4}\Longrightarrow \boxed{x=2}\\\\ 2y+1=7\Longrightarrow2y=7-1\Longrightarrow2y=6\Longrightarrow y=\dfrac{6}{2}\Longrightarrow \boxed{y=3}$