Electrical model of a transformer
Let's start from the very beginning:


X1 is the leakage reactance related to leakage inductance of the primary winding
X2 is the leakage reactance related to leakage inductance of the secondary winding
Xm (blue circle) represents the magnetization reactance which is related to magnetization inductance Lm of the transformer


The Lm is related to mutual inductance of a transformer as: $$ L_m = M \cdot a^{2} $$ where M is mutual inductance between pair of coils and a is transformer voltage ratio or turn ratio:
$$
a = \frac{V_1}{V_2}
$$

In red, you've marked a so-called Ideal Transformer. This transformer doesn't contribute any additional reactance or resistance. It simply transforms the voltage depending on given turn ratio of primary and secondary windings. If you'd like to, you can re-evaluate X2, R2 and load (capacitors also) so that everything can be placed on the left side of this ideal transformer like shown below.
For example to re-evaluate R2 to the side of primary winding, which is usually marked with apostrophe:
$$
R_{2}' = a^{2} R_{2}
$$