Given the equation:
[tex]6+3x=18[/tex]to solve for x, first we move the 6 to the right side of the equation with a negative sign. We get then:
[tex]\begin{gathered} 6+3x=18 \\ \Rightarrow3x=18-6=12 \\ 3x=12 \end{gathered}[/tex]now we have to move the 3 to the right side. Notice that since it is multiplying the variable x, it will pass to the other side dividing the constant 12:
[tex]\begin{gathered} 3x=12 \\ \Rightarrow x=\frac{12}{3}=4 \\ x=4 \end{gathered}[/tex]therefore, x = 4
