2(9-n)=4

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Solution for 2(9-n)=4 equation: 



2(9-n)=4

We move all terms to the left:

2(9-n)-(4)=0

We add all the numbers together, and all the variables

2(-1n+9)-4=0

We multiply parentheses

-2n+18-4=0

We add all the numbers together, and all the variables

-2n+14=0

We move all terms containing n to the left, all other terms to the right

-2n=-14

n=-14/-2

n=+7

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