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Can someone me with this problem . show your work .

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.