103=21x-2

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Solution for 103=21x-2 equation: 



103=21x-2

We move all terms to the left:

103-(21x-2)=0

We get rid of parentheses

-21x+2+103=0

We add all the numbers together, and all the variables

-21x+105=0

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

-21x=-105

x=-105/-21

x=+5

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