Respuesta :

Number is n

And is +

Is means equals

therefore

n +10=30

Answer:  n + 10 = 30

Step-by-step explanation:

Sum --> translates to +

a number --> translates to a variable

is --> translates to =

sum of a number and 10 --> n + 10

is 30 --> = 30

sum of a number and 10 is 30 --> n + 10 = 30