75=7n-9

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Solution for 75=7n-9 equation:


Simplifying
75 = 7n + -9

Reorder the terms:
75 = -9 + 7n

Solving
75 = -9 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
75 + -7n = -9 + 7n + -7n

Combine like terms: 7n + -7n = 0
75 + -7n = -9 + 0
75 + -7n = -9

Add '-75' to each side of the equation.
75 + -75 + -7n = -9 + -75

Combine like terms: 75 + -75 = 0
0 + -7n = -9 + -75
-7n = -9 + -75

Combine like terms: -9 + -75 = -84
-7n = -84

Divide each side by '-7'.
n = 12

Simplifying
n = 12

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