a is given to us so just plug a into the first equation:
b-3 - 3b =9
Add 3 to both sides:
b-3b=12
Combine like terms:
-2b=12
Divide by -2 to get b by itself:
b=-6
The only answer with b as -6 is the first one, (-9,-6)
<span>2 Li(s) + O2(g) = 2 LiO is the balanced equation</span>
Answer:
substitution
Step-by-step explanation:
Answer:
You might want to put that in a picture, because that makes very little sense.
