Answer:
your answer should be 4095
I got x = 4-2y
4x+8y=16
-8y=-8y
4x=16-8y
— ——-
4 4
x=4-2y
The angles of a quadrilateral add to 360, so we can solve for x by adding the 4 angle measures together and setting it equal to 360:
90 + 140 + (x - 10) + (x - 20) = 360
Combine like terms:
230 + 2x - 30 = 360
200 + 2x = 360
200 - (200) + 2x = 360 - (200)
2x = 160
Divide both sides by 2:
2x/(2) = 160/(2)
x = 80
Answer:
D) 20
Step-by-step explanation:
Ml║ YK and YM║KL ⇒ YK= ML= 10
ML║KX and XL║KM ⇒ KX= ML=10
YX= YK + KX= 10+10= 20
YX= 20
Step-by-step explanation:

