Question

45-3r=45-3r.5=_=_=_.


​

Answer 1

Resposta:

r =30

espero ter ajodado

Explicação passo-a-passo:

1. $\neq \left[\begin{array}{ccc}45-3r=45-3r.5&\\3r+3r=45.5-45&\\6r=180 \\ r=180/6&\end{array}\right ]$