Question

Consider the following number line what is the value of a+b-c

Answer 1

Let distance between ab be x

∴ distance between bc=2x

Let distance between cd be y

∴ distance between bc=2x

∴2x=2y

∴x=y

d−b

c−a

=

y+2x

2x+x

=

3x

3x

=1

Answer 2

this is the answer

here you go the number line