Question

3(n-5)=21. Ans please​

Answer 1

Answer:

$3(n - 5) = 21 \\ 3n - 15 = 21 \\ 3n = 21 + 15 = 6 \\ n = \frac{6}{3} = 2 \\ n = 2$

Step-by-step explanation:

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Answer 2

$3(n - 5) = 21$

${{\leadsto}}$ Divide both sides of the equation by 3

$n - 5 = 7$

${{\leadsto}}$Move the constant to the right-hand side and change its sign

$n = 7 + 5$

${{\leadsto}}$ Add the numbers

$n = 12$

Hope it helps...