5x-9=7+x

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Solution for 5x-9=7+x equation: 



5x-9=7+x

We move all terms to the left:

5x-9-(7+x)=0

We add all the numbers together, and all the variables

5x-(x+7)-9=0

We get rid of parentheses

5x-x-7-9=0

We add all the numbers together, and all the variables

4x-16=0

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

4x=16

x=16/4

x=4

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