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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