B = 38-S
(B-4) = 5(S-4)
Substitute 38-S for B in the second equation and solve for S. Insert that value into the first equation to solve for B. Check by putting both values into the second equation.
The sum of mr. brown's age& his sin's age is 38 yrs old this yr.4 yrs ago,mr. Brown was 5 times as old as his son. A. How old is his son this year? B. How old is mr. Brown this year?
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