3n+5=40-4n

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Solution for 3n+5=40-4n equation:


Simplifying
3n + 5 = 40 + -4n

Reorder the terms:
5 + 3n = 40 + -4n

Solving
5 + 3n = 40 + -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
5 + 3n + 4n = 40 + -4n + 4n

Combine like terms: 3n + 4n = 7n
5 + 7n = 40 + -4n + 4n

Combine like terms: -4n + 4n = 0
5 + 7n = 40 + 0
5 + 7n = 40

Add '-5' to each side of the equation.
5 + -5 + 7n = 40 + -5

Combine like terms: 5 + -5 = 0
0 + 7n = 40 + -5
7n = 40 + -5

Combine like terms: 40 + -5 = 35
7n = 35

Divide each side by '7'.
n = 5

Simplifying
n = 5

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