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polet [3.4K]
4 years ago
13

12a - 6 + 7a - 2a ; a = 4 Need help please

Mathematics
1 answer:
Novosadov [1.4K]4 years ago
3 0

Answer:

62

Step-by-step explanation:

Plug in the value of a in the equation:

12(4) - 6 + 7(4) - 2(4)

Solve 12(4) - 6:

12(4) - 6 = 48 - 6 = 42

Solve 7(4) - 2(4):

7(4) - 2(4) = 28 - 8 = 20

Combine both answers (42+20):

42+20 = 62

Complete answer:

12(4) - 6 + 7(4) - 2(4) = 62

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