4x-123=86-7x

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Solution for 4x-123=86-7x equation: 



4x-123=86-7x

We move all terms to the left:

4x-123-(86-7x)=0

We add all the numbers together, and all the variables

4x-(-7x+86)-123=0

We get rid of parentheses

4x+7x-86-123=0

We add all the numbers together, and all the variables

11x-209=0

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

11x=209

x=209/11

x=19

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