Question

Carol has 3 children. The youngest child is 4 years younger than the middle child. The oldest child is 6 years older than the middle child. The youngest child is 8. The sum of their ages is 12 years less than Carol's age. How old is Carol?

Let c = Carol's age; y = youngest child.

c=y+(y+4)+(y+4+6)+12
c=y-(y-4)-(y-4-6)-12
c+12=y+(y+4)+(y+4+6)
c=y+(y-4)+(y-4-6)+12

Answer 1

first one is the answer

c=y+(y+4)+(y+4+6)+12