[tex]\frac{x}{3}+5=x-1[/tex]
Whenever there's a denominator. Multiply all whole equation with the denominator. For example, the denominator here in the equation is 3. So we multiply the whole equation by 3.
[tex]\frac{x}{3}(3)+5(3)=x(3)-1(3)\\x+15=3x-3[/tex]
Moving the x to the same term which goes for the same as the constant for easier in solving.
[tex]15+3=3x-x[/tex]
Moving to the another side, changing the sign/operator to opposite (From plus to minus, from multiply to divide.)
[tex]18=2x\\2x=18\\[/tex]
Move 2 to another side, aka to divide 18.
[tex]x=\frac{18}{2}\\x=9[/tex]
Therefore, the answer is x = 9.