Question

Solve 3(n – 5) = 21,then n=​

Answer 1

Step by step explanation:

Step 1:

→$3(n – 5) = 21$

Step 2:

→$3n - 15 = 21$

Step 3:

→$3n = 21 + 15$

step 4:

→$3n = 36$

step 5:

→$n = \frac{36}{3}$

step 6:

→$n = 12✓$

Verification:

Step 1:

→3(n – 5) = 21

Step 2:

→3(12-5)=21

Step 3:

→3(7)=21

Step 4:

→21=21

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Answer 2

Answer:

n= -2

Step-by-step explanation:

3(n-5)= -21

3×n -3×5 = -21

3×n -15 = -21

3×n = -21 +15

3×n = -6

n = −63

n= -2

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