Question

3x + 2 ÷ 7 = 15 Monte a equação que traduz e problema e resolva-o

Answer 1

$\mathtt{3x + 2 \div 7 = 15 } ~~~~~~~(\times7) \\ \mathtt{21x + 2 = 105} \\ \mathtt{21x = 105 - 2 } \\ \mathtt{21x = 103} \\ \mathtt{\bf{x = \frac{103}{21} } } \\ \\ \\ \boxed{\boxed{\mathtt{Resposta : \frac{103}{21}}}}$