9+7x=13+9x

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Solution for 9+7x=13+9x equation:



9+7x=13+9x
We move all terms to the left:
9+7x-(13+9x)=0
We add all the numbers together, and all the variables
7x-(9x+13)+9=0
We get rid of parentheses
7x-9x-13+9=0
We add all the numbers together, and all the variables
-2x-4=0
We move all terms containing x to the left, all other terms to the right
-2x=4
x=4/-2
x=-2

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