3x+7(3-x)-9=0

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Solution for 3x+7(3-x)-9=0 equation: 



3x+7(3-x)-9=0

We add all the numbers together, and all the variables

3x+7(-1x+3)-9=0

We multiply parentheses

3x-7x+21-9=0

We add all the numbers together, and all the variables

-4x+12=0

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

-4x=-12

x=-12/-4

x=+3

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