Answered

4.9+a+b+2b-5-a ( combine like terms )

Sagot :

Answer:

4 + 3b

Step-by-step explanation:

9 + a + b + 2b - 5 - a

Subtract 5 from 9

4 + a + b + 2b - a

Subtract a from a

4 + b + 2b

Add b to 2b.

4 + 3b

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