Question

Jeri is 3 years younger than Laura, whose age is x. How old is Jeri?

x - 3 yrs old
x + 3 yrs old
3x yrs old

Answer 1

x-3

Answer 2

the best way to do this, if it is not obvious, is to pick a number and see what happens

Answer 3

for example, if laura is 10 and jeri is 3 years younger, then jeri is 7
you can see if laura is x and jeri is 3 years younger, then jeri is \(x-3\)