Question

Aaron and Alice are bowling.Alice's scores is twice the difference of Aaron's score and 5.the sum of their scores is 320.find each students bowling score.

Answer 1

X = alice
y = aaron

x + y = 320
x = 2(y - 5) = 2y - 10

(2y - 10) + y = 320
3y - 10 = 320
3y = 320 + 10
3y = 330
y = 330/3
y = 110 <==aaron's score

x = 2y - 10
x = 2(110) - 10
x = 220 - 10
x = 210 <==alice's score