Respuesta :

Primer numbers can only be divided by one and itself.

The equation is given as:

[tex]\mathbf{abc = 105}[/tex]

Assume a =  5.

So, we have:

[tex]\mathbf{5bc = 105}[/tex]

Divide through by 5

[tex]\mathbf{bc = 21}[/tex]

Assume b = 7

[tex]\mathbf{7c = 21}[/tex]

Divide through by 7

[tex]\mathbf{c = 3}[/tex]

So, we have:

[tex]\mathbf{a = 5, b = 7, c = 3}[/tex]

The sum is represented as:

[tex]\mathbf{a + b + c =5 + 7 + 3}[/tex]

[tex]\mathbf{a + b + c =15 }[/tex]

Hence, the sum of a, b and c is 15.

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