Question 128885
diaz is 1 year more than 3 times as old as his daughter.
NOW DATA:
Let her daughter's age be "x" yrs. old
Diaz's age is "3x+1" yrs. old.
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4 yrs. from NOW DATA:
Daughter will be "x+4" yrs.old
Diaz will be 3x+1+4 = "3x+5" yrs old.
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4 years from now he will lack 7 years from being 3 times as old as his daughter is then. find each age.
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EQUATION:
3x+5+7 =  3(x+4)
3x+12 = 3x+12
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It looks like Diaz's daughter could be any age 
and Diaz will be 3 times that + 1 yr.
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Cheers,
Stan H.