Tom is now 25 years older then his son. In 10 years, Tom will me 5 years younger than 3 times his sons age. how old is tome now?

Answer 1

T = Tom's age.
S = Son's age.
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equation 1 is T - 15 = S
equation 2 is T+ 10 + 5 = 3*(S+10)
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Solve the two equations simultaneously.
Post your work if you get stuck.
Check my thinking. Check my work.