Answer:
K=10
Step-by-step explanation:
So first distribute
3x-12=18
add 12 on both sides
3x=30
Divide 3 on each side
x=10
Get multi calculator you can scan those problems and it gives you the awnser
False planes do not have edges.
Answer:
3x-2
Step-by-step explanation:
-2x-2+5x=-2x+5x-2=3x-2