Question

PLEASE GIVE ANSWER. NO INNAPPROPRIATE THING. ONLY ANSWER.

Answer 1

$\huge{\mathcal{\pink{A}\green{N}\red{S}\blue{W} {E}\green{R}}}$

comparing both sides

3b=b+2

2b=2

b=1

and -6=a-8b

-6=a-8[b=1]

a=2

so, a-2b=2-2.1=2-2=0

Answer 2

a=2,b=1

a-2b

=2-2(1)

=2-2

=0