If the green suitcase is 36 pounds and the other suitcase is 10 pounds lighter than 3/4 just find what 3/4 is and subtract 10. Then you have the weight of the Blue suitcase. So the suitcase is 17 pounds. B=3/4G -10 but G =36 so B= 3/4 •36 -10 for the total just add. One is 36. One is 17. 53 pounds for both