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Sindrei [870]
3 years ago
8

Please help, I don't know how to get the answer.

Mathematics
1 answer:
natita [175]3 years ago
5 0

Answer:

<u>2</u>a<u> +7a </u>- 7 - <u>31</u>

3      18    1    6

<h2>12a+7a -126 -93</h2><h2><u>                            </u></h2><h2>              18</h2><h2>19a-219</h2><h2><u>               </u></h2><h2>     18</h2>

           

Step-by-step explanation:

the answer is

<u>19a-219</u>

    18

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