Respuesta :
Answer:
a -2b
Step-by-step explanation:
2 (a + 2 b) - a - 2 b
Distribute
2a +4b -a-2b
Combine like terms
2a-a +4b-2b
a -2b
Answer:
a -2b
Step-by-step explanation:
2 (a + 2 b) - a - 2 b
Distribute
2a +4b -a-2b
Combine like terms
2a-a +4b-2b
a -2b