Sagot :
x=son
x+30=father
x+30=3x+10
20=2x
x=10
Therefore, the age of Mr. Belen is 40, and his son is 10 years old.
Hope this helps =)
x+30=father
x+30=3x+10
20=2x
x=10
Therefore, the age of Mr. Belen is 40, and his son is 10 years old.
Hope this helps =)