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Jingles
Mathematics
21 July, 13:07
3n+2 (-2n-1) evaluate
+2
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2
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Ignacio
21 July, 13:14
0
-n-2
Step-by-step explanation:
First do 2 (-2n) and 2 (-1)
You get - 4n-2
Then add 3n to the equation
3n-4n-2
Combine Like Terms
3n-4n=-n
Final Answer:
-n-2
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Willow Montes
21 July, 13:18
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The answer is N = - 2 Simplifying
3n + 2 (-2n + - 1) = 0
Reorder the terms:
3n + 2 (-1 + - 2n) = 0
3n + (-1 * 2 + - 2n * 2) = 0
3n + (-2 + - 4n) = 0
Reorder the terms:
-2 + 3n + - 4n = 0
Combine like terms: 3n + - 4n = - 1n
-2 + - 1n = 0
Solving
-2 + - 1n = 0
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '2' to each side of the equation.
-2 + 2 + - 1n = 0 + 2
Combine like terms: - 2 + 2 = 0
0 + - 1n = 0 + 2
-1n = 0 + 2
Combine like terms: 0 + 2 = 2
-1n = 2
Divide each side by '-1'.
n = - 2
Simplifying
n = - 2
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