equations and inequalities are figured the same way except for that one rule with inequalities...multiplying/dividing by a negative number changes the inequality sign.
Basically, u get the variable terms on one side and everything else on the other side...then solve for the variable. The only thing that would make it faster is if u had fractions...u would turn those fractions into whole numbers by multiplying by the lowest common denominator.
Other then that, I dont know how u could make it faster.