8x-45=4x-21

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Solution for 8x-45=4x-21 equation: 



8x-45=4x-21

We move all terms to the left:

8x-45-(4x-21)=0

We get rid of parentheses

8x-4x+21-45=0

We add all the numbers together, and all the variables

4x-24=0

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

4x=24

x=24/4

x=6

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