57-12x=89-21x

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Solution for 57-12x=89-21x equation: 



57-12x=89-21x

We move all terms to the left:

57-12x-(89-21x)=0

We add all the numbers together, and all the variables

-12x-(-21x+89)+57=0

We get rid of parentheses

-12x+21x-89+57=0

We add all the numbers together, and all the variables

9x-32=0

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

9x=32

x=32/9

x=3+5/9

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