11x+7=21x-3

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Solution for 11x+7=21x-3 equation: 



11x+7=21x-3

We move all terms to the left:

11x+7-(21x-3)=0

We get rid of parentheses

11x-21x+3+7=0

We add all the numbers together, and all the variables

-10x+10=0

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

-10x=-10

x=-10/-10

x=1

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