7+2x=9+4x

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Solution for 7+2x=9+4x equation: 



7+2x=9+4x

We move all terms to the left:

7+2x-(9+4x)=0

We add all the numbers together, and all the variables

2x-(4x+9)+7=0

We get rid of parentheses

2x-4x-9+7=0

We add all the numbers together, and all the variables

-2x-2=0

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

-2x=2

x=2/-2

x=-1

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