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iragen [17]
3 years ago
7

What is 7(n+4)=21 ?

Mathematics
2 answers:
navik [9.2K]3 years ago
8 0

Answer:

n=-1

Step-by-step explanation:

7n + 28 = 21

subtract 28 on both sides

7n= -7

divide by seven on both sides

n= -1

vfiekz [6]3 years ago
3 0

The answer is -1

<em>Hope this helps, Kam</em>


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Step-by-step explanation:

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                       aₙ = a₁*rⁿ⁻¹

  • Hallando termino 1

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Verificación;

 n          aₙ    

 1       192

 2       96

 3       48

 4       24

 5        12

 6          6

 7          3           ✔

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