Respuesta :

Make an equation.

x + (x + 11) = 79

x is Michael's age.
x + 11 is Gabrielle's age.
79 is the sum of their ages.

Now solve.

2x + 11 = 79
2x = 68
x = 34

Michael is 34 years old (since x is Michael's age).

Answer:

Michael is 34

Step-by-step explanation:

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