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-3( n+5 )=12
whats is the answer

User EagleEye
by
7.7k points

2 Answers

3 votes

Question

-3( n+5 )=12

whats is the answer


Answer:

-9


Explanation:


-3*( n+5 )=12

-3n - 15 = 12

-3n = 12 + 15

-3n = 27

n = 27 : (-3)

n = -9

----------------------

check

-3 * (-9 + 5) = 12

-3 * (-4) = 12

the answer is good


User Tlingf
by
8.2k points
4 votes

Answer:

n = -9

Explanation:

-3 (n + 5) = 12 Use the distributive property (-3 · n) + (-3 · 5) = 12

-3n - 15 = 12 Add 15 to both sides

-3n = 27 Divide both sides by -3

n = -9

Check your answer by plugging -9 in for n.

-3 (n + 5) = 12 Replace n with -9

-3 (-9 + 5) = 12 Add

-3 (-4) = 12 Multiply

12 = 12

User Mine
by
8.3k points