Respuesta :

Answer:

the number is 2

Step-by-step explanation:

3= [tex]\frac{21}{x+5}[/tex]

multiply by (x+5)

3(x+5)=21

divide by 3

x+5=7

subtract 5

x=2

charmained6

Answer:

x =2

Step-by-step explanation:

3 = 21/(x+5)

3(x+5) = 21

3x+15 = 21

3x = 6

x = 2

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