The question reads. Nayeon went on a hike with his aunt, sister and dad. they all started at the same spot but Nayeon and her au
nt took a different route than her had and sis. Nayeon and her hiked 34 meters up before stopping for water. Then they hiked 120 meters down the mountain toward a river before stopping for lunch. After lunch they hiked 84 meters up before stopping to each a snack. Nayeons sister and dad hiked 28 meters down into a valley before hiking 84 meters uo the mountain/ After taking a brek they kept hiking and went 55 meters up before stopping for lunch, after lunch they hiked 62 neters down and then stopped for a snack. What is the difference in meters. between the point where each group stopped for snacks.
Nayeon and her aunt hiked 154 meters before they had lunch and after they had lunch, they hiked 84 more meters. all together they hiked 238 meters. The dad and sister hiked 167 meters before they had lunch and after they had lunch, they hiked 62 more meters. all together they hiked 329 meters. The difference in meters between Nayeon and her aunt and her dad and her sister (before lunch) is 13 meters.
Your answer is -5. This is because, if you expand the single bracket, you get -6x -3a, and since the other side of the equals sign is -6x + 15, then you need to do 15 ÷ -3 = -5.
