Respuesta :
Answer:
6a−1+3b
explanations:
1) simply 1 x b to b
9a+8+b−3a+2b−9
2)collect like terms
(9a−3a)+(8−9)+(b+2b)
then simplify: 6a−1+3b
Answer:
6a−1+3b
explanations:
1) simply 1 x b to b
9a+8+b−3a+2b−9
2)collect like terms
(9a−3a)+(8−9)+(b+2b)
then simplify: 6a−1+3b