Question

Colve 3(n-5) = 21. please help me to solve this.​

Answer 1

Answer:

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Step-by-step explanation:

3(n-5) = 21

first is to distribute the parenthesis to number 3

so 3(n-5) = 21 -----> 3n - 15 = 21

then transfer number 15 to the other side

so 3n - 15 = 21 ------> 3n = 15 + 21

then add the two numbers

so 3n = 15 + 21 ------> 3n = 36

then divide both side to 3

so $\frac{3n}{3}$ = $\frac{36}{3}$

then cross out both 3 in numerator and denominator in the left side

n = 12

SO n = 12

YOU CAN DO IT!! DONT GIVE UP. REMEMBER, GRADE DON'T DEFINE WHO YOU ARE.

Answer 2

Answer:

Step-by-step explanation:

3(n -5) = 21

3n -15 =21

3n=21+15

3n=36

n= 36/3

n=12  Answer