12-3n+4(2n+5)=

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Solution for 12-3n+4(2n+5)= equation:


Simplifying
12 + -3n + 4(2n + 5) = 0

Reorder the terms:
12 + -3n + 4(5 + 2n) = 0
12 + -3n + (5 * 4 + 2n * 4) = 0
12 + -3n + (20 + 8n) = 0

Reorder the terms:
12 + 20 + -3n + 8n = 0

Combine like terms: 12 + 20 = 32
32 + -3n + 8n = 0

Combine like terms: -3n + 8n = 5n
32 + 5n = 0

Solving
32 + 5n = 0

Solving for variable 'n'.

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

Add '-32' to each side of the equation.
32 + -32 + 5n = 0 + -32

Combine like terms: 32 + -32 = 0
0 + 5n = 0 + -32
5n = 0 + -32

Combine like terms: 0 + -32 = -32
5n = -32

Divide each side by '5'.
n = -6.4

Simplifying
n = -6.4

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