21x=19x+7

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Solution for 21x=19x+7 equation: 



21x=19x+7

We move all terms to the left:

21x-(19x+7)=0

We get rid of parentheses

21x-19x-7=0

We add all the numbers together, and all the variables

2x-7=0

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

2x=7

x=7/2

x=3+1/2

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