23x+12=21x-30

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Solution for 23x+12=21x-30 equation: 



23x+12=21x-30

We move all terms to the left:

23x+12-(21x-30)=0

We get rid of parentheses

23x-21x+30+12=0

We add all the numbers together, and all the variables

2x+42=0

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

2x=-42

x=-42/2

x=-21

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