Answer:
n = 3
Step-by-step explanation:
First we begin by setting up the equation. Tripling n and adding 10 looks like: 3n + 10. The result can be set up looking like 7n-2 since it is two less (-2) than seven times n (7n). Then we put it together in an equation:
3n+10 = 7n-2
+2 +2
3n+12 = 7n
-3n -3n
12 = 4n
/4 /4
3 = n or n = 3
