Answer:
Step-by-step explanation:
4x + 7 = 3x + 14
x + 7 = 14
x = 7
4(7) + 7 + 3(7) + 14
28 + 7 + 21 + 14
35 + 35 = 70
Answer:
Step-by-step explanation:
Quadrilaterals add up to 360 degrees.
Let the missing angle = x
68 + 52 + 125 + x = 360
245 + x = 360
Subtract 245 from both sides.
245 - 245 + x = 360 - 245
Combine
x = 115
Yes, it is a rational number.