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Solution:

Let s = the amount of money in Subira's bank account and b = the amount of money in Barak’s account. Since Subira has 2p fewer dollars than Barak, we can write equation 1 as the following:

$\Rightarrow s=b-2p$

If together they have 12p dollars in their bank accounts, then equation 2 can be the following:

$\Rightarrow s+b=12p$

We can substitute b - 2p from equation 1 for s in equation 2:

$\begin{array}{l}\Rightarrow (b-2p)+b=12p\\ \Rightarrow 2b-2p=12p\\ \Rightarrow 2b=14p\\ \Rightarrow b=7p\end{array}$

Thus, Barak has 7p dollars.