15m + 4n - 5m + 9n = 10m + 13n
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5m-12n
-7m - 3m + 5m = -5m
8M - 4M - 6 - 3 + 5M = 82 - 1 9M - 9 = 64 - 1 9M - 9 = 63 9M - 9 +9 = 63 + 9 9M = 72 9M/9 = 72/9 M = 8
75m2 if in a square is 8.66m by 8.66m, alternatively 15m by 5m is also 75m2
Total distance travelled = 20m + 15m = 35m Total displacement travelled=20m - 15m =5m