Resposta :
Olá
[tex]\LARGE{}3y + 4 = 13 \\ \LARGE{}3y = 13 - 4 \\ \LARGE{}3y = 9 \\ \LARGE{}\LARGE\boxed{y = 3}[/tex]
[tex]{\large\boxed{\boxed{ { \large \tt BONS \: \: ESTUDOS \: MEU \: ANJO \:<3 }}}}[/tex]
Olá
[tex]\LARGE{}3y + 4 = 13 \\ \LARGE{}3y = 13 - 4 \\ \LARGE{}3y = 9 \\ \LARGE{}\LARGE\boxed{y = 3}[/tex]
[tex]{\large\boxed{\boxed{ { \large \tt BONS \: \: ESTUDOS \: MEU \: ANJO \:<3 }}}}[/tex]