Find X. Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:
7
Step-by-step explanation:
tan theta = opposite side /adjacent side
tan 45 = 7/x
Multiply each side by x
x tan 45 = 7
Divide each side by tan 45
x tan 45/ tan 45 = 7/ tan 45
x = 7/ tan 45
x = 7