2*(8*5 + 5*3 + 3*8) = 2*(40 + 15 + 24) = 2*79 = 158 m2
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-3m = 5m+8 -3m-5m = 8 -8m = 8 m = -1
To solve the equation 5m + 3 = 3m + 9, you need to isolate the variable m. Start by subtracting 3m from both sides to get 2m + 3 = 9. Then, subtract 3 from both sides to get 2m = 6. Finally, divide by 2 to find m = 3.
5m = 2m - 153m = -15m = -15/3m = -5
40 cubic meters
-15m but -15 metres doesnt exist