Answer:

Step-by-step explanation:
The solution is in the picture
3(6-7x)=-(x+2)
Use distributive property
18-21x = -x -2
Add x on both sides
18-20x = -2
Subtract 18 from both sodes
-20x= -20
Divide
Final Answer: x=1
Answer:the total trip, and I should be right, was 7 miles. He rowed up for 3 hours, and back for 1.