Answer:
82
Step-by-step explanation:
This is a 7-sided figure meaning it's interior angles add up to...
(7-2)*180=5*180=900 degrees
We can use this information to set up an equation:
x+2x+160+125+110+147+112=900
Combine like terms:
3x+654=900
Subtract 654 from both sides:
3x+654-654=900-654
3x=246
Divide both sides by 3
x=82
