`lpx:set-row-bounds:`procedureSets bounds for row

`I`in the given problem. Argument`BOUNDS`specifies the type and bounds for the specified row. It can take one of the following forms:'(unbounded) Free (unbounded) variable, `-Inf <= x <= +Inf`'(lower-bound LB) Variable with lower bound, `LB <= x <= +Inf`'(upper-bound UB) Variable with upper bound, `-Inf <= x <= UB`'(double-bounded LB UB) Double-bounded variable, `LB <= x <= UB`'(fixed LB UB) Fixed variable, `LB = x = UB`