Standard form is just putting (in this case) variables in alphabetical order. First we simplify- 2x+4=4y would become 1/2x+1=y. This is already in standard form, as numbers w/o variables come at the end. simplifying the next one is more tricky. first you get a variable/number alone- 9-2x-2y=4x+3 9-2y=6x+3 6-2y=6x 1-1/3y=x 1=x+1/3y 3=x+y x+y=3 sorry if I was wrong and not of any help, But I do believe this is correct.
Description The Schumer box is a summary of the costs of a credit card in the United States. It is named after Chuck Schumer, then New York congressman who was responsible for the legislation requiring that terms of credit cards be clearly outlined in any promotional material. Hope it helps