Answer to Question #35667 in Algebra for Emma Johnson

Question

Amy is x years old
In 13 years time she will be 3 times as old as she was 5 years ago.
How old is she now?

Answer 1

Amy is x years old
In 13 years time she will be 3 times as old as she was 5 years ago.
How old is she now?

Solution.
Write equation by assignment: 3*(x-5)=x+13;
open brackets: 3x-15=x+13;
collect similar terms: 2x=28 and
find x=14.
Answer: Ann is 14.