8x-21=-5x-8

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Solution for 8x-21=-5x-8 equation: 



8x-21=-5x-8

We move all terms to the left:

8x-21-(-5x-8)=0

We get rid of parentheses

8x+5x+8-21=0

We add all the numbers together, and all the variables

13x-13=0

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

13x=13

x=13/13

x=1

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