4x-9+7x=31+3x

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Solution for 4x-9+7x=31+3x equation: 



4x-9+7x=31+3x

We move all terms to the left:

4x-9+7x-(31+3x)=0

We add all the numbers together, and all the variables

4x+7x-(3x+31)-9=0

We add all the numbers together, and all the variables

11x-(3x+31)-9=0

We get rid of parentheses

11x-3x-31-9=0

We add all the numbers together, and all the variables

8x-40=0

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

8x=40

x=40/8

x=5

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