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mr Goodwill [35]
3 years ago
10

3 (40 - 2) + 5 = 12a - 1

Mathematics
1 answer:
Rom4ik [11]3 years ago
3 0

Answer:

a = 5.5

Step-by-step explanation:

3 (40 - 2) + 5 = 12a - 1

120 - 60 + 5 = 12a - 1

60 + 5 = 12a - 1

65 = 12a - 1

<u>+1            +1</u>

66 = 12a

<u>/12     /12</u>

5.5 = a

a = 5.5

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