If, in 7 years, Susan will be 2 times as old as she was 3 years ago, what is Susan’s present age? PLEAZE EXPLAIN HOW AND DO IT W

Question

erma4kov [3.2K]

3 years ago

10

If, in 7 years, Susan will be 2 times as old as she was 3 years ago, what is Susan’s present age? PLEAZE EXPLAIN HOW AND DO IT W

ITH USING X

Mathematics

2 answers:

Solnce55 [7] · Answer 1 · 2022-01-14T17:45:45+03:00

Solnce55 [7]3 years ago

8 0

Answer:

Susan is 13 years old.

Step-by-step explanation:

Susan=x

After 7 years she will be 7+x then she will be 2x as old as she was 3 year ago.

age 3 yrs ago=x-3

2x-6=7+x

if you simplify....

now she is 13

hope it helps!!!!

belka [17] · Answer 2 · 2022-01-14T15:18:25+03:00

Let Susan's present age be x

Now, after 7 years ( her age will become 7 +x then) she'll be 2 as old she was 3 years ago.

Her age 3 years ago must be x-3

Now according to question,

twice Her age 3 years ago = her age after 7 years

now,

2(x-3) = 7+x
2x-6 = 7+x
2x-x =7+6
x = 13
x = 13

Therefore, her age presenr age is 13 years.