21x-12=16x+8

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Solution for 21x-12=16x+8 equation: 



21x-12=16x+8

We move all terms to the left:

21x-12-(16x+8)=0

We get rid of parentheses

21x-16x-8-12=0

We add all the numbers together, and all the variables

5x-20=0

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

5x=20

x=20/5

x=4

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