Question

How old is my uncle if 400 reduced by 2 times his age is 244?

Answer 1

My uncle is 78 years old.

Explanation:

Let the age of your uncle be x.

400 - 2x = 244

Shift (-2x) to the other side and change it to (+2x).

400 = 244 + 2x

Shift (+244) to the other side and change it to (-244).

400 - 244 = 2x

Evaluate.

2x = 156

Find x.

x = 156 ÷ 2

x = 78