75=7n+15+5n

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Solution for 75=7n+15+5n equation:


Simplifying
75 = 7n + 15 + 5n

Reorder the terms:
75 = 15 + 7n + 5n

Combine like terms: 7n + 5n = 12n
75 = 15 + 12n

Solving
75 = 15 + 12n

Solving for variable 'n'.

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

Add '-12n' to each side of the equation.
75 + -12n = 15 + 12n + -12n

Combine like terms: 12n + -12n = 0
75 + -12n = 15 + 0
75 + -12n = 15

Add '-75' to each side of the equation.
75 + -75 + -12n = 15 + -75

Combine like terms: 75 + -75 = 0
0 + -12n = 15 + -75
-12n = 15 + -75

Combine like terms: 15 + -75 = -60
-12n = -60

Divide each side by '-12'.
n = 5

Simplifying
n = 5

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