Seven years ago, my mother was seven times older than me.

In exactly eight years from now, my mother will be two times older than me.

How old is my mother now?

Guest Jan 20, 2021

#1**+1 **

Say my age back then is x

So my moms back then was 7x

In 8 years, we add 15.

So 7x+15 and x+15

7x+15 is two times x+15

So 7x+15 equals 2x+30

5x=15

x=3

So back then your mother was 21.

Checking work

21+15=2(3+15)

MooMooooMooM Jan 20, 2021

#1**+1 **

Best Answer

Say my age back then is x

So my moms back then was 7x

In 8 years, we add 15.

So 7x+15 and x+15

7x+15 is two times x+15

So 7x+15 equals 2x+30

5x=15

x=3

So back then your mother was 21.

Checking work

21+15=2(3+15)

MooMooooMooM Jan 20, 2021