Iwoodin21 Iwoodin21

19-10-2020
Mathematics

contestada

Simplify the expression.

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

A.18a + 18b

B.9a + 23b

C.9(2a + 2b)

D.9a + 19b

Respuesta :

aaliyahomitogun aaliyahomitogun

19-10-2020

Answer:

D.9a+19b

Step-by-step explanation:

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

7*a=7a

7*3b=21b

2*a=2a

2*-b=-2b

7a+21b+2a-2b

7a+2a=9a

21b-2b=19b

Hope this helps:)

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Lizzie010 Lizzie010

19-10-2020

The answer would be d 9a+19b

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