Question 29595
You can start by getting the variable to one side of the equation.
{{{-s+4 = 7s-3}}} Add s to both sides of the equation.  This will "undo" the negative s (-s) on the left side and "move" it to the right side.
{{{4 = 8s-3}}} Now add 3 to both sides.
{{{7 = 8s}}} Finally, divide both sides by 8.
{{{7/8 = s}}} or {{{s = 7/8}}}