Answer:
3
if a is 1 more than b it can be expressed as so:
a=b+1
b+1=a
b^2+1=a^2
b^2=a^2-1
b=a-1
if b if 1 then a is 2
-a+b=-1
a-b=1
a=2, b=1
a+b=3
1+2=3
Step-by-step explanation:
