Answer:
the total surface of the box is 486 cm 2
.......
Answer:
x=9
Step-by-step explanation:
Answer:
this is not an answer but I will post one, could you tell us what the answer choices are?
Step-by-step explanation:
it would help with the answers.
Answer:
x=-7
Step-by-step explanation:
first, subtract 4x from both sides. then you'll get:
-9=3x+12
next subtract 12 from both sides. Then you'll get:
-21=3x
then you divide each side by 3. You get:
x=-7
