Question

In

Answer 1

Let

x-------> amount of money in their savings accounts in May

we know that

In June, Liam deposited $$140$ into his account

so

Balance Liam’s saving in June is equal to

$x+140$ ------> equation $1$

In June, Charlie increased the money in his account by$5$%

Balance Charlie’s saving in June is equal to

$x+0.05x$ ------> equation $2$

Equate equation $1$ and equation $2$

$x+140=x+0.05x\\ x+140=1.05x\\ 1.05x-x=140\\ 0.05x=140\\ x=140/0.05\\ x=2,800$$

therefore

the answer is

$$2,800$

Answer 2

Liam’s saving = x + $140
Charlie’s saving = x + 5%
In order to get the value of x, let’s find the amount which 5% is equals to 140
=> 2800
=> 5% = 0.05
=> 2800 x 0.05
=> 140
=> 2800 (amount that Liam and Charlie have in their account before they added)
Thus, Liam and Charlie both have $2800 on their account .
=> Liams = 2800 + 140 = 2940
=> Charlir = 2800 + 5% (140) = 2940.