combine like terms and simplify the expression

Question

2( 3a - 4b - 2c) - (-6a + 9b - c) + 6a/2

Answer 1

2( 3a - 4b - 2c) - (-6a + 9b - c) + 6a/2

Multiply thru the 2 parenthesis expressions by 2 and -1 and then set 6/2 =3

6a -8b -4c + 6a -9b +c +3a

Combine like terms

15a -17b -3c