How would I get rid of the +3?

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

Asap i need it now choose all the answers that apply. sex-linked disorders affect males more than females affect females more than males can be carried by females, without being expressed are always expressed in males are caused by genes carried on the x and y chromosomes

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?