They are right except for 12. i think it is C but i could be wrong.
Answer:
you need to show more for help
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
they are necessary
This is an equation, you can't write equations as decimals. I think you're asking for x (as a decimal)?
Add 8 to each side: 4+8= 8+(-8)+3x
12=3x
x=4
This is a whole number so it's already in decimal form
