8x-19=4x+21

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Solution for 8x-19=4x+21 equation: 



8x-19=4x+21

We move all terms to the left:

8x-19-(4x+21)=0

We get rid of parentheses

8x-4x-21-19=0

We add all the numbers together, and all the variables

4x-40=0

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

4x=40

x=40/4

x=10

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