Respuesta :

DeanR

4b + 7a - 2a = 4b + (7-2)a = 4b + 5a

Answer: 4b + 5a


4b+7a-2a
________
4b=b+b+b+b
7a=7a+7a+7a+7a+7a+7a+7a
2a=7a+7a+7a+7a+7a

4b |--------|

7a |--------------|

2a |----------|.
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4b+7a-2a=4b+(7-2)a=4b+5a ANSWER:4b+5a