Question

Sabendo que os pontos A (3x - 5) e B (10) na reta são iguais, calcule o valor de x.​

Answer 1

✅ Após resolver os cálculos, concluímos que o valor de "x" de modo que os pontos sejam iguais é:

      $\Large\displaystyle\text{ \begin{gathered}\boxed{\boxed{\:\:\:\bf x = 5\:\:\:}}\end{gathered} }$    

Sejam os pontos:

      $\Large\begin{cases} A(3x - 5)\\B(10)\end{cases}$

Então temos:

              $\Large\displaystyle\begin{gathered} A = B\end{gathered}$

    $\Large\displaystyle\begin{gathered} 3x - 5 = 10\end{gathered}$

             $\Large\displaystyle\begin{gathered} 3x = 10 + 5\end{gathered}$

             $\Large\displaystyle\begin{gathered} 3x = 15\end{gathered}$

                $\Large\displaystyle\begin{gathered} x = \frac{15}{3}\end{gathered}$

                $\Large\displaystyle\begin{gathered} x = 5\end{gathered}$

✅ Portanto, o valor de "x" é:

                $\Large\displaystyle\begin{gathered} x = 5\end{gathered}$

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