If sara’s age is y...
1. In five years, she’ll be y + 5
2. Three years ago, she was y - 3
3. If her grandpa is 6 times her age, then he’s 6y, aka 6 times y
4. If her grandpa is 6y, and her grandma is two years younger than her grandpa, then her grandma is 6y- 2
5. If sara’s dad is five years more than three times her age, it will be sara’s age, y, times three and then plus 5, aka 3y+ 5