Tom has 7 more silver dollars than jimmy. together they have a total of 71 silver dollars. how many silver dollars does tom have?

Steve had 48 chocolates but decided to give 8 chocolates to each of his ff coworkers. how many chocolates does steve have left? write your answer as an expression.

Need solving this second acceleration problem.

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?