Question

The sum of the ages of Ruby and his daughter is 49.
7 years ago, ruby was 6 times as old as her
daughter. Find their present ages.
please solve this by simultaneous linear equation
please tell answer as soon as possible​

Answer 1

Answer:

Age of ruby + her daughter =49 years..

7years ago ..49-7 =42 year ..

6 time old as her daughter

42/6= 7 year..is the age of her daughter.and present age of her is 14 year..

therefore..Ruby age..= 49-14= ruby's age ..35..years. in present.

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Answer 2

Step-by-step explanation:

let ruby's age be x and her daughter's be y

x+y=49

x-7=6(y-7)

x-6y=7-42

x-6y=35

x+y=49

(-)_(-)__(-)___

-7y=-14

y=2

x=47