Question

Qual é o resultado : 2x+6=x+18

Answer 1

$2x+6=x+18 \\ \\ 2x+6-x=18 \\ \\ x+6=18 \\ \\ x=18-6 \\ \\ x=12$

Prova real : Substituindo o X pelo valor encontrado no caso 12

$2*12+6=12+18 \\ \\ 24+6=30 \\ \\ 30=30$

Answer 2

$\Large\displaystyle\begin{gathered} \sf{2x+6=x+18 } \end{gathered}$

$\Large\displaystyle\begin{gathered} \sf{ 2x-x=18-6} \end{gathered}$

$\Large\displaystyle\text{ \begin{gathered} \boxed{\boxed{\sf{x=12} } }\end{gathered} }$