Question

[ 6a − { 9a – ( 10 – 4a – 3a )}]​

Answer 1

Answer:

$answer \: is \: given \: in \: attachment$

Answer 2

Step-by-step explanation:

5a[6a-{9a-(10a-7a)

=5a-[6a-{9a-3a}

=5a-[6a-6a]

=5a-0

=5a is the answer