In this figure shown below, for what value of h will XY - X Z? Four students worked out the problem. Choose the student that solved for h correctly.

EXPLANATION
In order to get the congruency, we need to match both sides:
[tex]XY=XZ[/tex]Substituting terms:
[tex]7h-5=3h+5[/tex]Subtracting -3h to both sides:
[tex]7h-3h-5=5[/tex]Subtracting like terms:
[tex]4h-5=5[/tex]Adding +5 to both sides:
[tex]4h=10[/tex]In conclusion, the appropriate expression is the Student C