7x-78=126-5x

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Solution for 7x-78=126-5x equation: 



7x-78=126-5x

We move all terms to the left:

7x-78-(126-5x)=0

We add all the numbers together, and all the variables

7x-(-5x+126)-78=0

We get rid of parentheses

7x+5x-126-78=0

We add all the numbers together, and all the variables

12x-204=0

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

12x=204

x=204/12

x=17

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