Question

Smith's age is 8 and his mother is 42.in how many years will the mother be three times as his son​

Answer 1

Let’s make an equation
Let’s say x = amount of years after
Smith = 8, mother = 42
3(8 + x) = 42 + x
24 + 3x = 42 + x
2x = 18, x = 9
Solution: after 9 years