5n+12=75-4n

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Solution for 5n+12=75-4n equation:


Simplifying
5n + 12 = 75 + -4n

Reorder the terms:
12 + 5n = 75 + -4n

Solving
12 + 5n = 75 + -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.
12 + 5n + 4n = 75 + -4n + 4n

Combine like terms: 5n + 4n = 9n
12 + 9n = 75 + -4n + 4n

Combine like terms: -4n + 4n = 0
12 + 9n = 75 + 0
12 + 9n = 75

Add '-12' to each side of the equation.
12 + -12 + 9n = 75 + -12

Combine like terms: 12 + -12 = 0
0 + 9n = 75 + -12
9n = 75 + -12

Combine like terms: 75 + -12 = 63
9n = 63

Divide each side by '9'.
n = 7

Simplifying
n = 7

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