x denote the number of people in the group;
y denote the amount of money each person will get.
2. "Translate" the text into equations:
3. Expand the brackets and subtract the 1st equation columnwise from the 2nd equation. After moving some stuff around you'll get:
4. Substitute in the 1st equation the variable y by 5x - 4. Expand the brackets and solve for x.
5. Plug in the value of x into the equato [A] to calculate y.