SOLUTION: tony is 4 years older than julia. the sum of their ages are their ages is 30. how old are they?

SOLUTION: tony is 4 years older than julia. the sum of their ages are their ages is 30. how old are they?

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Question 709552: tony is 4 years older than julia. the sum of their ages are their ages is 30. how old are they?

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
let Tony's age be and Julia's age
if Tony is years older than Julia, then
.....eq. 1

if the sum of their ages are their ages is , then
.....eq. 2..substitute from eq. 1
......solve for

........Julia's age
now go back to eq. 1 and solve for
.....eq. 1
.......Tony's age

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