Question

1. Solve the equation: 3(n-5) - 3 = 21​

Answer 1

Answer:

=> 3(n-5) = 21+3

=> 3(n-5) = 24

=> n-5 = 24/3

=> n-5 = 8

=> n = 8+5

=> n = 13

Answer 2

Answer:

$3(n - 5) - 3 = 21 \\( 3n - 15) - 3 = 21 \\ (3n - 15) = 21 + 3 \\ (3n - 15) = 24 \\ 3n = 24 + 15 \\ 3n = 39 \\ n = \frac{39}{3} = 13 \\ \\ therefore \: \: n = 13$

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