21x+42=35x

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Solution for 21x+42=35x equation: 



21x+42=35x

We move all terms to the left:

21x+42-(35x)=0

We add all the numbers together, and all the variables

-14x+42=0

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

-14x=-42

x=-42/-14

x=+3

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