Question

Alex is six years older than his sister, Emma. The sum of their ages is 32. How old is Alex?

Answer 1

26

Answer 2

Correct. So I started this wrong.

The way to do it is to assume Alex is X years old and Emma is Y years old. And X + Y = 32, since 32’s the sum.

Answer 3

The key to this is substitution.

X - 6 = Y
X + Y = 32.

Do you know what to do with these equations?

Answer 4

@JAN342gg