An object on a number line moved from x = 12 m to x = 124 m and moved back to x = 98 m. The time interval for all the motion was 10 s. What was the average velocity of the object? I GAVE THE ANSWER D0WN BELOW iM ASKING IF YOU WOULD SHOW OR EXPLAIN THE WORK FOR THE ANSWER (I WILL MAKE BRAINLIEST)

x1=12 m, x2=98 m: Δx=86 m; Δt =10 s. Δx/Δt = 86m/10s = 8.6 m/s