3x+2x-5=21-8x

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Solution for 3x+2x-5=21-8x equation: 



3x+2x-5=21-8x

We move all terms to the left:

3x+2x-5-(21-8x)=0

We add all the numbers together, and all the variables

3x+2x-(-8x+21)-5=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

5x+8x-21-5=0

We add all the numbers together, and all the variables

13x-26=0

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

13x=26

x=26/13

x=2

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