71-3x=42x+21

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Solution for 71-3x=42x+21 equation: 



71-3x=42x+21

We move all terms to the left:

71-3x-(42x+21)=0

We get rid of parentheses

-3x-42x-21+71=0

We add all the numbers together, and all the variables

-45x+50=0

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

-45x=-50

x=-50/-45

x=1+1/9

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