2a+45 = 56

So we shall  solve this like

2a+45=56

Now first we will take 45 to the other side which will then turn to -45 from 45

2a= 56-45

2a=11

now to gt a we will devide 2 by 11

a=11/2

now i hope u can do the devision yourself and  get the final answer!

hope this helps!

$${\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{a}}{\mathtt{\,\small\textbf+\,}}{\mathtt{45}} = {\mathtt{56}} \Rightarrow {\mathtt{a}} = {\frac{{\mathtt{11}}}{{\mathtt{2}}}} \Rightarrow {\mathtt{a}} = {\mathtt{5.5}}$$