In March, Isaiah and Freddie had the same amount of money in their savings accounts. In April, Isaiah deposited $210 into his account. Freddie increased the money in his account by 15%. When they compared their balances, they found that they were still equal.

How much money did they both have in their accounts in March?

Question

In March, Isaiah and Freddie had the same amount of money in their savings accounts. In April, Isaiah deposited $210 into his account. Freddie increased the money in his account by 15%. When they compared their balances, they found that they were still equal.
 
How much money did they both have in their accounts in March?

texaschic101 · Answer

x = money in account in march
x + 210 = 1.15x
210 = 1.15x - x
210 = 0.15x
210/0.15 = x
1400 = x

check..
x + 210 = 1.15x
1400 + 210 = 1.15(1400)
1610 = 1610 (correct)

In March, they both had $ 1400. In April, they both have $ 1610