Melinda has $22 and plans to save $10 each week. George has $10 and plans to save $13 each week.

In how many weeks will they have the same amount saved?

@omar_elboredy

Question

Melinda has $22 and plans to save $10 each week. George has $10 and plans to save $13 each week.
 
In how many weeks will they have the same amount saved?
 
@omar_elboredy

anonymous · Answer

Let the number of weeks to be n then we get 2 equations one for Melinda which will be 
22 + 10n and the other for George which will be 10 + 13n after n weeks both values will be equal which means that 

22 + 10n = 10 +13n
get the 10n to the right hand side and the 10 in the right hand side to the left .. then you get 
12 = 3n
which you could simply find n by dividing both sides by 3 >> n = 4 weeks 
Let me know if you got it :)