18x+7=21x-1

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Solution for 18x+7=21x-1 equation: 



18x+7=21x-1

We move all terms to the left:

18x+7-(21x-1)=0

We get rid of parentheses

18x-21x+1+7=0

We add all the numbers together, and all the variables

-3x+8=0

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

-3x=-8

x=-8/-3

x=2+2/3

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