Aaron’s score is 110, and Betty’s score is 210. Aron’s score is x, Betty’s score is 2(x-5). X+2(x-5)=320, Distribute 2 to get x+2x-10=320; Add like terms (terms with x, and add 10 to both sides to get 3x=330; Divide both sides by 3 to get X= 110 Aaron’s score is 110. Plug in 110 instead of x in the Betty’s score equation to get 2(110-5); Solve to get 2 *105=210. It’s Betty’s score.