3n+4=5(n+20+-2n)

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Solution for 3n+4=5(n+20+-2n) equation:


Simplifying
3n + 4 = 5(n + 20 + -2n)

Reorder the terms:
4 + 3n = 5(n + 20 + -2n)

Reorder the terms:
4 + 3n = 5(20 + n + -2n)

Combine like terms: n + -2n = -1n
4 + 3n = 5(20 + -1n)
4 + 3n = (20 * 5 + -1n * 5)
4 + 3n = (100 + -5n)

Solving
4 + 3n = 100 + -5n

Solving for variable 'n'.

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

Add '5n' to each side of the equation.
4 + 3n + 5n = 100 + -5n + 5n

Combine like terms: 3n + 5n = 8n
4 + 8n = 100 + -5n + 5n

Combine like terms: -5n + 5n = 0
4 + 8n = 100 + 0
4 + 8n = 100

Add '-4' to each side of the equation.
4 + -4 + 8n = 100 + -4

Combine like terms: 4 + -4 = 0
0 + 8n = 100 + -4
8n = 100 + -4

Combine like terms: 100 + -4 = 96
8n = 96

Divide each side by '8'.
n = 12

Simplifying
n = 12

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