Question

My sister is 14 years old. My brother says that his age minus tweleve is equal to my sister's age. How old is my brother

Answer 1

Take his age, subtract off 12 and you get the sister's age

(brother's age) - 12 = sister's age

x - 12 = 14

x - 12+12 = 14+12 ... add 12 to both sides to undo "minus 12"

x = 26

The brother is 26 years old