
<h3>

</h3>




Substituting the value of x in
( equation 2)







Now we get y = 6
Substituting the value of y in
( equation 1 )



Now we get x = 3

<h3>y = 6 </h3>
<h3>x = 3</h3>
Answer:
Alternate interior angles-
<2 and <7
<4 and <5
Answer:
−x2+2x−1=0
Step-by-step explanation:
To write an equation in standard form, move each term to the left side of the equation and simplify.
ax2+bx+c=0
Move 1
to the left side of the equation by subtracting it from both sides.
2x−x2−1=0
Reorder the polynomial.
−x2+2x−1=0
BED=80
BED=BEC+CED=2x+4+40
80=2x+4+40
80=2x+44
minus 44 both sides
36=2x
divide by 2
18=x
and AEB is 90 degrees
x=18