Q: What is 15m plus 4n minus 5m plus 9n?

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5m-12n

15m because if its 5m BY 3m then the by is standing for the OF witch it a mathematical phrase for algebra and witch means to multiply the base by height. and the area is found by multiplying the sides together. so 5m multiplied by2m is 15m

-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

Total distance travelled = 20m + 15m = 35m Total displacement travelled=20m - 15m =5m

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Fihd

5m-12n

5m = 2m - 153m = -15m = -15/3m = -5

5m + 7 - 2m - 1 = 3m + 6

5m+2n, n-3m, 7-3n (5m+2n)+(n-3m)+(7-3n)=2m+7

15m because if its 5m BY 3m then the by is standing for the OF witch it a mathematical phrase for algebra and witch means to multiply the base by height. and the area is found by multiplying the sides together. so 5m multiplied by2m is 15m

There are 4 terms

5m-5n+5m+5n When simplified: 10m

-15m but -15 metres doesnt exist

4m + 9 + 5m - 12 = 42 9m -3 = 42 9m = 42 + 3 9m = 45 m = 5

-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