Question

Solve the math:

Elsa is 2 years older than Bella. Emma is twice as old as Elsa. So, what will be the sum of their ages in 1 years time. And then also find out what was the summation of their ages before 5 years from now.

Answer 1

Explanation:

Let Emma's age be 2x years, then:

Elsa's age is x years, also:

Bella's age is x - 2 years.

In one years time the sum of their ages

= 2x + 1 + x + 1 + x - 2 + 1

= 4x + 1 where x = Elsa's age now.

5 years before now

Sum of their ages

= 2x -5 + x - 5 + x - 2 - 5

= 4x - 17 where x = Elsa's age now,