3(n-7)+4(n+2)=

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Solution for 3(n-7)+4(n+2)= equation:


Simplifying
3(n + -7) + 4(n + 2) = 0

Reorder the terms:
3(-7 + n) + 4(n + 2) = 0
(-7 * 3 + n * 3) + 4(n + 2) = 0
(-21 + 3n) + 4(n + 2) = 0

Reorder the terms:
-21 + 3n + 4(2 + n) = 0
-21 + 3n + (2 * 4 + n * 4) = 0
-21 + 3n + (8 + 4n) = 0

Reorder the terms:
-21 + 8 + 3n + 4n = 0

Combine like terms: -21 + 8 = -13
-13 + 3n + 4n = 0

Combine like terms: 3n + 4n = 7n
-13 + 7n = 0

Solving
-13 + 7n = 0

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '13' to each side of the equation.
-13 + 13 + 7n = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 7n = 0 + 13
7n = 0 + 13

Combine like terms: 0 + 13 = 13
7n = 13

Divide each side by '7'.
n = 1.857142857

Simplifying
n = 1.857142857

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