8x+5x-80=100-8x

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Solution for 8x+5x-80=100-8x equation: 



8x+5x-80=100-8x

We move all terms to the left:

8x+5x-80-(100-8x)=0

We add all the numbers together, and all the variables

8x+5x-(-8x+100)-80=0

We add all the numbers together, and all the variables

13x-(-8x+100)-80=0

We get rid of parentheses

13x+8x-100-80=0

We add all the numbers together, and all the variables

21x-180=0

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

21x=180

x=180/21

x=8+4/7

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