Question

Annie and Emily are sisters. Emily’s age is 7 more than twice Annie's age, a. The sum of their ages is 45. Which equation represents this relationship?

Answer 1

3x=38

Explanation:

Given that,

Annie and Emily are sisters. Emily’s age is 7 more than twice Annie's age, a. The sum of their ages is 45.

Let Annie's age is x.

Emily's age = 7+2x

ATQ,

The sum of their ages is 45.

x+7+2x = 45

Taking like terms together,

x+2x = 45-7

3x=38

Hence, this is the relation between their ages.