Respuesta :

Answer:

11+m = 15

m = 4

Step-by-step explanation:

Sum means add and is means equals

11+m = 15

Subtract 11 from each side

11+m-11 =15-11

m = 4

Answer- 4

Explanation:
Sum is Addition
So 11 + m = 15
Next, you do the OPPOSITE operation (-)
So 15 - 11 = 4.

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- Mathhotdog •~•