In order to solve what 3m-15 is, the problem would need to have an equals sign with an answer so that a person can solve for m. Without this being an equation, m could really be anything. If the problem were to equal 0, then 15 would need to be added to both sides, and then both sides would need to be divided by 3, giving m the answer of 5.
3m + 15 = 45 3m = 30 m = 10
mn - 15 + 3m - 5n Rearranging: mn + 3m - 5n - 15 = m(n + 3) - 5(n + 3) = (m - 5)*(n + 3)
22-3m=7 [Subtract 22 from each side]-3m=-15 [Divide both numbers by -3]m=5
9 sq m
5m = 2m - 153m = -15m = -15/3m = -5
3m + 15 = 45 3m = 30 m = 10
3m+2=17 First, subtract 2 to get m on one side. 3m+2-2=17-2 3m=15 Divide by 3 to get m by itself. 3m/3=15/3 m=5 m equals 5.
mn - 15 + 3m - 5n Rearranging: mn + 3m - 5n - 15 = m(n + 3) - 5(n + 3) = (m - 5)*(n + 3)
22-3m=7 [Subtract 22 from each side]-3m=-15 [Divide both numbers by -3]m=5
9 sq m
15-2 = 13
5m = 2m - 153m = -15m = -15/3m = -5
The area is 15 square metres.
Assuming you mean 15 percent of 3 metres.... That's 45 centimetres.
12meters
5*3 = 15 square meters
3m