Iget stuck whit these i don’t get how to do them

The solution to the equations is where the graphs of the two functions intersect. We can't trust the graph because it's not clear. We have to solve the system of inequalities. Let's solve for x in the first equation:




Plug that into the second equation for x:


 




Now, plug this back into the first equation to solve for x:




So, the solution to that system is (4, 6) which looks like the D.