Answer:
x + x - 272 = 600
Step-by-step explanation:
Let the amount raised by Kate by x and let the amount raised by Isabelle be y.
Now, we are told that Kate raised $272 more than Isabelle.
Thus, since amount raised by Kate is x, then amount raised by Isabelle is x - 272. We are told that together they raised $600.
Thus;
x + x - 272 = 600
Thus;
equation to represent the total amount of money the girls raised is;
x + x - 272 = 600
