Question

subtract ( a + 2b) from the sum of ( a - b ) and ( 2a + b) ​

Answer 1

Answer:

2(a+b)

Step-by-step explanation:

Sum= (a-b) + (2a+b)

= a-b+2a+b

= 3a

subtraction of (a+2b) from (3a);

=3a - a+2b

=2a+2b

=2(a+b)