Question

How do you do this and what’s the answer ?

Answer 1

A. y=2

x+y=2.5

b. x=2 or 5

y=2 or 5

I don't know which on equals 2 and which equals 5, but 5 and 2 are the answers

Explanation:

a. 2x0.5=1

b. 2+5=7 and 2x5=10