Explicação passo-a-passo:
[tex]\blue {{ _{\heartsuit} } \heartsuit_{\heartsuit} } \: \: \mathsf {OI, TUDO \: \: J\acute{O}IA \: ? \: \:\blue {{ _{\heartsuit} } \heartsuit_{\heartsuit} } } \\ \\ \sf{3x - 1 = 29} \\ \sf{3x = 29 + 1} \\ \sf{3x = 30} \\ \sf{x = \frac{30}{3} } \\ \boxed{\red{ \sf{x = 10}}} \\ \\ \mathcal{ATT : ARMANDO} \\ \mathfrak{\small04\diagup01\diagup2021} \\ \mathfrak{\small{9} :{32} \: \: pm}[/tex]
