The 1st is correct and the 2nd is also correct as it should obey the Law of Conservation of mass.
Coal: N
Gold: N
Oxygen: R
Petroleum: N
Soil: R
Trees: R
Uranium: N
hope this helps, and sorry if some of these are incorrect:)
Answer:
large
Explanation:
necause scars are always large
Answer:(3x-12)
Explanation:Rearranging the equation we get,
3x-12=y
which equals to
1/y=1/(3x-12)
Now,multiply both sides by x
x/y=x/(3x-12)
8x/2y=4x/y=4x/(3x-12)