Answer:
=21+11x
Step-by-step explanation:
All angles in a triangle add up to 180 degrees. So, if you are missing an angle, add up the degrees of the angles present and subtract that from 180. That will be the value of the missing angle in degrees.
N IS THE TRUE ELEMENTSSSS
A because coplanar means in the same plane.
Answer:
Infinite solutions
Step-by-step explanation:
(x−1)+3=2x+1
(2)(x)+(2)(−1)+3=2x+1(Distribute)
2x+−2+3=2x+1
(2x)+(−2+3)=2x+1(Combine Like Terms)
2x+1=2x+1
2x+1=2x+1
Step 2: Subtract 2x from both sides.
2x+1−2x=2x+1−2x
1=1
Step 3: Subtract 1 from both sides.
1−1=1−1
0=0
