Answer:
x = 0
Step-by-step explanation:
2(x - 3) + 9 = 3(x + 1) + x
2x - 6 + 9 = 3x + 3 + x
2x + 3 = 4x + 3
2x - 4x = 3 - 3
-2x = 0
2x = 0
x = 0/2
x = 0
180=15+85+(4x-20)
180-15-85=4x-20
80=4x-20
4x-20=80
4x=80+20
4x=100
x=100/4
x=25
Answer:
Check the intersecting lines with the corner of a piece of paper to ensure the lines create 90° angles. Check the distance along the lines at several places with a compass to ensure they are the same length.
