Question

My daughter had a quiz today and the 3 questions did not make sense to me. Can anyone decifer how you would solve for the variable on these? I am stumped!!
1) In 10 years, Sara will be 81 older than she is now. How old is Sara now?

2) In 8 years, Sara will be 49 years older than she is now. How old is Sara now?

3) In 11 years, Bob will be 100 years than he is now. How old is Bob now?

Answer 1

Answer:

1 71years

Step-by-step explanation:

x+10=81

x=71

2. x+8=49

x=41

3. x+11=100

x=99