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Plz help solve this please and thx u ​
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3 votes
Plz help solve this please and thx u

​

Plz help solve this please and thx u ​-example-1
User Joseph Tura
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1 Answer

3 votes
2 (an - 1) = 40
2an - 2 =40
2an = 40 - 2
2an = 38
2an/2 = 38/2
an = 19
User Pangolin
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