-x+3=75-7x

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Solution for -x+3=75-7x equation: 



-x+3=75-7x

We move all terms to the left:

-x+3-(75-7x)=0

We add all the numbers together, and all the variables

-x-(-7x+75)+3=0

We add all the numbers together, and all the variables

-1x-(-7x+75)+3=0

We get rid of parentheses

-1x+7x-75+3=0

We add all the numbers together, and all the variables

6x-72=0

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

6x=72

x=72/6

x=12

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