21x-1=19x+7

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Solution for 21x-1=19x+7 equation: 



21x-1=19x+7

We move all terms to the left:

21x-1-(19x+7)=0

We get rid of parentheses

21x-19x-7-1=0

We add all the numbers together, and all the variables

2x-8=0

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

2x=8

x=8/2

x=4

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