Answer:
n=4
Step-by-step explanation:
To solve combine your like terms.
You can start by adding 0.8 to both sides and subtracting 0.7n from both sides.
[tex]-0.8+1.4n=2+0.7n\\1.4n=2.8+0.7n\\0.7n=2.8[/tex]
Next, divide both sides by 0.7 to isolate for n.
[tex]0.7n=2.8\\n=4[/tex]