Answer:
x = 60
Step-by-step explanation:
The sum of the angles in a triangle is 180
40 + x+20 + x = 180
Combine like terms
2x+60 =180
Subtract 60 from each side
2x+60-60 =180-60
2x =120
Divide by 2
2x/2 =120/2
x = 60
Answer: 12,997 - 7,580 = x
x= 5417
Step-by-step explanation: 12,997 - 7580 = 5417
Hope this helps
If you divide 21/49 by 7 you get 3/7
The answer is 540 because 32/48 is 2/3 and 360/540 equals 2/3