2x-1=20
2x=20/1
2x=20
x=20/2
x=10
2x+3y =20
2×10+3y=20
20+3y=20
3y=20-20
3y=0
3/0=y
y=0
Answer:8 planes are shown in the figure
Step-by-step explanation:
Answer:
I give the crown
if you do
side AB
