Question

$\left(7-b)+(3b+2\right)$

Answer 1

Answer:

7-b+3b+2

=9+2b

Hope it helps you.

Answer 2

=>Addition/Subtraction will occur if we simply add or subtract like terms. First, it may be helpful to combine like terms so that they are next to each other:

=7+ 2+3b-b

= 9+ 2b or 2b + 9.