Question

Subtract 2a - b from 3a + 2​

Answer 1

3a+2 - (3a-b)

= 3a+2-3a+b

= 2+b

Answer 2

$\Large\green{\underline{\underline{\bf{Question}}}}$

Subtract 2a - b from 3a + 2

$\Large\green{\underline{\underline{\bf{Solution}}}}$

= (3a + 2) - (2a - b)

= 3a + 2 - 2a + b

= 3a - 2a + 2 + b

= a + b + 2

Note

same sign = addition

opposite sign = Subtraction