7+9inx=12

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Solution for 7+9inx=12 equation: 


Simplifying
7 + 9inx = 12

Solving
7 + 9inx = 12

Solving for variable 'i'.

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

Add '-7' to each side of the equation.
7 + -7 + 9inx = 12 + -7

Combine like terms: 7 + -7 = 0
0 + 9inx = 12 + -7
9inx = 12 + -7

Combine like terms: 12 + -7 = 5
9inx = 5

Divide each side by '9nx'.
i = 0.5555555556n-1x-1

Simplifying
i = 0.5555555556n-1x-1

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