Answer:
x = 18
Step-by-step explanation:
The parts of the triangles are proportional, so you can write ...
2x/80 = 27/60
Multiply by 120:
3x = 54
Divide by 3:
x>4
x+6>10
x+6-6>10-6
x+4,446>4,450
x+4,446-4,446>4,450-4,446
