3x+9=16+4x

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Solution for 3x+9=16+4x equation: 



3x+9=16+4x

We move all terms to the left:

3x+9-(16+4x)=0

We add all the numbers together, and all the variables

3x-(4x+16)+9=0

We get rid of parentheses

3x-4x-16+9=0

We add all the numbers together, and all the variables

-1x-7=0

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

-x=7

x=7/-1

x=-7

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