8x-20=-7x

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Solution for 8x-20=-7x equation: 



8x-20=-7x

We move all terms to the left:

8x-20-(-7x)=0

We get rid of parentheses

8x+7x-20=0

We add all the numbers together, and all the variables

15x-20=0

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

15x=20

x=20/15

x=1+1/3

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